65280044 has 12 divisors (see below), whose sum is σ = 118179600. Its totient is φ = 31514448.

The previous prime is 65280041. The next prime is 65280053. The reversal of 65280044 is 44008256.

It is a super-2 number, since 2×65280044² = 8522968289283872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 65279989 and 65280016.

It is not an unprimeable number, because it can be changed into a prime (65280041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281264 + ... + 281495.

It is an arithmetic number, because the mean of its divisors is an integer number (9848300).

Almost surely, 2^65280044 is an apocalyptic number.

It is an amenable number.

65280044 is a deficient number, since it is larger than the sum of its proper divisors (52899556).

65280044 is a wasteful number, since it uses less digits than its factorization.

65280044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562792 (or 562790 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 65280044 is about 8079.6066735949. The cubic root of 65280044 is about 402.6491742885.

The spelling of 65280044 in words is "sixty-five million, two hundred eighty thousand, forty-four".