662052690 has 80 divisors (see below), whose sum is σ = 1917154008. Its totient is φ = 162964224.

The previous prime is 662052689. The next prime is 662052719. The reversal of 662052690 is 96250266.

662052690 is a `hidden beast` number, since 6 + 620 + 5 + 26 + 9 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 554743809 + 107308881 = 23553^2 + 10359^2 .

It is a super-2 number, since 2×662052690² = 876627528672472200, which contains 22 as substring.

It is a Curzon 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 39 ways as a sum of consecutive naturals, for example, 20907 + ... + 41966.

Almost surely, 2^662052690 is an apocalyptic number.

662052690 is an abundant number, since it is smaller than the sum of its proper divisors (1255101318).

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

662052690 is a wasteful number, since it uses less digits than its factorization.

662052690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62905 (or 62896 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 662052690 is about 25730.3845676663. The cubic root of 662052690 is about 871.5604574706.

The spelling of 662052690 in words is "six hundred sixty-two million, fifty-two thousand, six hundred ninety".