65021244 has 24 divisors (see below), whose sum is σ = 155417808. Its totient is φ = 21144960.

The previous prime is 65021239. The next prime is 65021261. The reversal of 65021244 is 44212056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65587 + ... + 66570.

It is an arithmetic number, because the mean of its divisors is an integer number (6475742).

Almost surely, 2^65021244 is an apocalyptic number.

It is an amenable number.

65021244 is an abundant number, since it is smaller than the sum of its proper divisors (90396564).

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

65021244 is a wasteful number, since it uses less digits than its factorization.

65021244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132205 (or 132203 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 65021244 is about 8063.5751376173. The cubic root of 65021244 is about 402.1163743174.

The spelling of 65021244 in words is "sixty-five million, twenty-one thousand, two hundred forty-four".