64441232 has 20 divisors (see below), whose sum is σ = 126094236. Its totient is φ = 31900800.

The previous prime is 64441211. The next prime is 64441243. The reversal of 64441232 is 23214446.

It can be written as a sum of positive squares in 2 ways, for example, as 38390416 + 26050816 = 6196^2 + 5104^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18323 + ... + 21554.

Almost surely, 2^64441232 is an apocalyptic number.

It is an amenable number.

64441232 is a deficient number, since it is larger than the sum of its proper divisors (61653004).

64441232 is a wasteful number, since it uses less digits than its factorization.

64441232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39986 (or 39980 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 64441232 is about 8027.5296324585. The cubic root of 64441232 is about 400.9171289126.

Adding to 64441232 its reverse (23214446), we get a palindrome (87655678).

The spelling of 64441232 in words is "sixty-four million, four hundred forty-one thousand, two hundred thirty-two".