3905399232 has 224 divisors, whose sum is σ = 13812723200. Its totient is φ = 1057038336.

The previous prime is 3905399177. The next prime is 3905399237. The reversal of 3905399232 is 2329935093.

3905399232 is a `hidden beast` number, since 3 + 90 + 539 + 9 + 23 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×3905399232² = 30504286322612379648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905399237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221328 + ... + 238320.

Almost surely, 2^3905399232 is an apocalyptic number.

3905399232 is a gapful number since it is divisible by the number (32) 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 3905399232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6906361600).

3905399232 is an abundant number, since it is smaller than the sum of its proper divisors (9907323968).

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

3905399232 is a wasteful number, since it uses less digits than its factorization.

3905399232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17040 (or 17024 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 45.

The square root of 3905399232 is about 62493.1934853709. The cubic root of 3905399232 is about 1574.7869680123.

The spelling of 3905399232 in words is "three billion, nine hundred five million, three hundred ninety-nine thousand, two hundred thirty-two".