3855371904 has 224 divisors, whose sum is σ = 11683732800. Its totient is φ = 1266430464.

The previous prime is 3855371903. The next prime is 3855371929. The reversal of 3855371904 is 4091735583.

3855371904 is a `hidden beast` number, since 3 + 8 + 553 + 7 + 1 + 90 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 3855371904.

It is not an unprimeable number, because it can be changed into a prime (3855371903) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7371387 + ... + 7371909.

Almost surely, 2^3855371904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3855371904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5841866400).

3855371904 is an abundant number, since it is smaller than the sum of its proper divisors (7828360896).

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

3855371904 is an frugal number, since it uses more digits than its factorization.

3855371904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 3855371904 is about 62091.6411765706. The cubic root of 3855371904 is about 1568.0338219832.

The spelling of 3855371904 in words is "three billion, eight hundred fifty-five million, three hundred seventy-one thousand, nine hundred four".