662145904 has 20 divisors (see below), whose sum is σ = 1466180464. Its totient is φ = 283776768.

The previous prime is 662145899. The next prime is 662145923. The reversal of 662145904 is 409541266.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2955897 + ... + 2956120.

Almost surely, 2^662145904 is an apocalyptic number.

It is an amenable number.

662145904 is an abundant number, since it is smaller than the sum of its proper divisors (804034560).

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

662145904 is a wasteful number, since it uses less digits than its factorization.

662145904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5912032 (or 5912026 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 662145904 is about 25732.1958643253. The cubic root of 662145904 is about 871.6013594638.

It can be divided in two parts, 6621 and 45904, that added together give a palindrome (52525).

The spelling of 662145904 in words is "six hundred sixty-two million, one hundred forty-five thousand, nine hundred four".