1005372904 has 16 divisors (see below), whose sum is σ = 1945883520. Its totient is φ = 486470640.

The previous prime is 1005372853. The next prime is 1005372923. The reversal of 1005372904 is 4092735001.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2026714 + ... + 2027209.

It is an arithmetic number, because the mean of its divisors is an integer number (121617720).

Almost surely, 2^1005372904 is an apocalyptic number.

It is an amenable number.

1005372904 is a deficient number, since it is larger than the sum of its proper divisors (940510616).

1005372904 is a wasteful number, since it uses less digits than its factorization.

1005372904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053960 (or 4053956 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1005372904 is about 31707.6158674852. The cubic root of 1005372904 is about 1001.7877699739.

The spelling of 1005372904 in words is "one billion, five million, three hundred seventy-two thousand, nine hundred four".