3806402904 has 48 divisors (see below), whose sum is σ = 10409115600. Its totient is φ = 1256480064.

The previous prime is 3806402903. The next prime is 3806402911. The reversal of 3806402904 is 4092046083.

It is a happy number.

3806402904 is a `hidden beast` number, since 3 + 8 + 0 + 640 + 2 + 9 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806402903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249219 + ... + 264050.

It is an arithmetic number, because the mean of its divisors is an integer number (216856575).

Almost surely, 2^3806402904 is an apocalyptic number.

It is an amenable number.

3806402904 is an abundant number, since it is smaller than the sum of its proper divisors (6602712696).

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

3806402904 is a wasteful number, since it uses less digits than its factorization.

3806402904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513384 (or 513377 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 3806402904 is about 61696.0525803718. The cubic root of 3806402904 is about 1561.3667213931.

Adding to 3806402904 its reverse (4092046083), we get a palindrome (7898448987).

The spelling of 3806402904 in words is "three billion, eight hundred six million, four hundred two thousand, nine hundred four".