3158421420 has 288 divisors, whose sum is σ = 11325726720. Its totient is φ = 650280960.

The previous prime is 3158421379. The next prime is 3158421437. The reversal of 3158421420 is 241248513.

It is a super-4 number, since 4×3158421420⁴ (a number of 39 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4106796 + ... + 4107564.

It is an arithmetic number, because the mean of its divisors is an integer number (39325440).

Almost surely, 2^3158421420 is an apocalyptic number.

3158421420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3158421420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5662863360).

3158421420 is an abundant number, since it is smaller than the sum of its proper divisors (8167305300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3158421420 is a wasteful number, since it uses less digits than its factorization.

3158421420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 3158421420 is about 56199.8346972658. The cubic root of 3158421420 is about 1467.2023888915.

Adding to 3158421420 its reverse (241248513), we get a palindrome (3399669933).

It can be divided in two parts, 3158421 and 420, that added together give a triangular number (3158841 = T₂₅₁₃).

The spelling of 3158421420 in words is "three billion, one hundred fifty-eight million, four hundred twenty-one thousand, four hundred twenty".