64574472 has 32 divisors (see below), whose sum is σ = 165801600. Its totient is φ = 20942784.

The previous prime is 64574453. The next prime is 64574473. The reversal of 64574472 is 27447546.

It is a self number, because there is not a number n which added to its sum of digits gives 64574472.

It is not an unprimeable number, because it can be changed into a prime (64574473) 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 7 ways as a sum of consecutive naturals, for example, 35472 + ... + 37247.

It is an arithmetic number, because the mean of its divisors is an integer number (5181300).

Almost surely, 2^64574472 is an apocalyptic number.

It is an amenable number.

64574472 is an abundant number, since it is smaller than the sum of its proper divisors (101227128).

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

64574472 is a wasteful number, since it uses less digits than its factorization.

64574472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72765 (or 72761 counting only the distinct ones).

The product of its digits is 188160, while the sum is 39.

The square root of 64574472 is about 8035.8242887709. The cubic root of 64574472 is about 401.1932534923.

It can be divided in two parts, 645744 and 72, that added together give a triangular number (645816 = T₁₁₃₆).

The spelling of 64574472 in words is "sixty-four million, five hundred seventy-four thousand, four hundred seventy-two".