3421012140 has 288 divisors, whose sum is σ = 12951259776. Its totient is φ = 711659520.

The previous prime is 3421012117. The next prime is 3421012141. The reversal of 3421012140 is 412101243.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3421012141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1194310 + ... + 1197170.

It is an arithmetic number, because the mean of its divisors is an integer number (44969652).

Almost surely, 2^3421012140 is an apocalyptic number.

3421012140 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 3421012140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6475629888).

3421012140 is an abundant number, since it is smaller than the sum of its proper divisors (9530247636).

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

3421012140 is a wasteful number, since it uses less digits than its factorization.

3421012140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969 (or 2964 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3421012140 is about 58489.4190431056. The cubic root of 3421012140 is about 1506.7858683676.

Adding to 3421012140 its reverse (412101243), we get a palindrome (3833113383).

The spelling of 3421012140 in words is "three billion, four hundred twenty-one million, twelve thousand, one hundred forty".