64974252 has 48 divisors (see below), whose sum is σ = 174908160. Its totient is φ = 18388032.

The previous prime is 64974227. The next prime is 64974263. The reversal of 64974252 is 25247946.

It is a self number, because there is not a number n which added to its sum of digits gives 64974252.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5374 + ... + 12602.

It is an arithmetic number, because the mean of its divisors is an integer number (3643920).

Almost surely, 2^64974252 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 64974252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87454080).

64974252 is an abundant number, since it is smaller than the sum of its proper divisors (109933908).

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

64974252 is a wasteful number, since it uses less digits than its factorization.

64974252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7350 (or 7348 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 64974252 is about 8060.6607669595. The cubic root of 64974252 is about 402.0194787720.

The spelling of 64974252 in words is "sixty-four million, nine hundred seventy-four thousand, two hundred fifty-two".