404626401604 has 12 divisors (see below), whose sum is σ = 727233938284. Its totient is φ = 196845276384.

The previous prime is 404626401583. The next prime is 404626401611. The reversal of 404626401604 is 406104626404.

It can be written as a sum of positive squares in 2 ways, for example, as 390935061504 + 13691340100 = 625248^2 + 117010^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 1366980939 + ... + 1366981234.

Almost surely, 2^404626401604 is an apocalyptic number.

It is an amenable number.

404626401604 is a deficient number, since it is larger than the sum of its proper divisors (322607536680).

404626401604 is a wasteful number, since it uses less digits than its factorization.

404626401604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733962214 (or 2733962212 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 404626401604 in words is "four hundred four billion, six hundred twenty-six million, four hundred one thousand, six hundred four".