65600442 has 20 divisors (see below), whose sum is σ = 146993946. Its totient is φ = 21866760.

The previous prime is 65600419. The next prime is 65600443. The reversal of 65600442 is 24400656.

It is a happy number.

65600442 is a `hidden beast` number, since 656 + 0 + 0 + 4 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65464281 + 136161 = 8091^2 + 369^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (65600443) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 202309 + ... + 202632.

Almost surely, 2^65600442 is an apocalyptic number.

65600442 is an abundant number, since it is smaller than the sum of its proper divisors (81393504).

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

65600442 is a wasteful number, since it uses less digits than its factorization.

65600442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404955 (or 404946 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 65600442 is about 8099.4099785108. The cubic root of 65600442 is about 403.3068408405.

The spelling of 65600442 in words is "sixty-five million, six hundred thousand, four hundred forty-two".