65264472 has 144 divisors (see below), whose sum is σ = 221588640. Its totient is φ = 17200512.

The previous prime is 65264467. The next prime is 65264473. The reversal of 65264472 is 27446256.

65264472 is a `hidden beast` number, since 6 + 5 + 2 + 644 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65264473) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45153 + ... + 46575.

It is an arithmetic number, because the mean of its divisors is an integer number (1538810).

Almost surely, 2^65264472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65264472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110794320).

65264472 is an abundant number, since it is smaller than the sum of its proper divisors (156324168).

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

65264472 is a wasteful number, since it uses less digits than its factorization.

65264472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1448 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 65264472 is about 8078.6429553484. The cubic root of 65264472 is about 402.6171555623.

The spelling of 65264472 in words is "sixty-five million, two hundred sixty-four thousand, four hundred seventy-two".