3921436830 has 16 divisors (see below), whose sum is σ = 9411448464. Its totient is φ = 1045716480.

The previous prime is 3921436817. The next prime is 3921436837. The reversal of 3921436830 is 386341293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3921436837) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65357251 + ... + 65357310.

It is an arithmetic number, because the mean of its divisors is an integer number (588215529).

Almost surely, 2^3921436830 is an apocalyptic number.

3921436830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3921436830 is an abundant number, since it is smaller than the sum of its proper divisors (5490011634).

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

3921436830 is a wasteful number, since it uses less digits than its factorization.

3921436830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130714571.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 3921436830 is about 62621.3767814155. The cubic root of 3921436830 is about 1576.9396551292.

The spelling of 3921436830 in words is "three billion, nine hundred twenty-one million, four hundred thirty-six thousand, eight hundred thirty".