662653404 has 72 divisors (see below), whose sum is σ = 2026952928. Its totient is φ = 178191360.

The previous prime is 662653399. The next prime is 662653429. The reversal of 662653404 is 404356266.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73057 + ... + 81624.

It is an arithmetic number, because the mean of its divisors is an integer number (28152124).

Almost surely, 2^662653404 is an apocalyptic number.

It is an amenable number.

662653404 is an abundant number, since it is smaller than the sum of its proper divisors (1364299524).

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

662653404 is a wasteful number, since it uses less digits than its factorization.

662653404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154715 (or 154710 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 662653404 is about 25742.0551627099. The cubic root of 662653404 is about 871.8239814599.

The spelling of 662653404 in words is "six hundred sixty-two million, six hundred fifty-three thousand, four hundred four".