64031472 has 120 divisors (see below), whose sum is σ = 190654464. Its totient is φ = 20793024.

The previous prime is 64031459. The next prime is 64031477. The reversal of 64031472 is 27413046.

64031472 is a `hidden beast` number, since 640 + 3 + 14 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64031477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166993 + ... + 167375.

Almost surely, 2^64031472 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 64031472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95327232).

64031472 is an abundant number, since it is smaller than the sum of its proper divisors (126622992).

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

64031472 is a wasteful number, since it uses less digits than its factorization.

64031472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 64031472 is about 8001.9667582414. The cubic root of 64031472 is about 400.0655559221.

It can be divided in two parts, 6403 and 1472, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 64031472 in words is "sixty-four million, thirty-one thousand, four hundred seventy-two".