65290944 has 28 divisors (see below), whose sum is σ = 172749464. Its totient is φ = 21763584.

The previous prime is 65290937. The next prime is 65290949. The reversal of 65290944 is 44909256.

It is a super-2 number, since 2×65290944² = 8525814736822272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65290949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169837 + ... + 170220.

Almost surely, 2^65290944 is an apocalyptic number.

65290944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

65290944 is an abundant number, since it is smaller than the sum of its proper divisors (107458520).

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

65290944 is a wasteful number, since it uses less digits than its factorization.

65290944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340072 (or 340062 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 65290944 is about 8080.2811832262. The cubic root of 65290944 is about 402.6715835450.

The spelling of 65290944 in words is "sixty-five million, two hundred ninety thousand, nine hundred forty-four".