64730032 has 20 divisors (see below), whose sum is σ = 125540080. Its totient is φ = 32332608.

The previous prime is 64730023. The next prime is 64730051. The reversal of 64730032 is 23003746.

It is a junction number, because it is equal to n+sod(n) for n = 64729979 and 64730006.

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, 27394 + ... + 29662.

It is an arithmetic number, because the mean of its divisors is an integer number (6277004).

Almost surely, 2^64730032 is an apocalyptic number.

It is an amenable number.

64730032 is a deficient number, since it is larger than the sum of its proper divisors (60810048).

64730032 is a wasteful number, since it uses less digits than its factorization.

64730032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 64730032 is about 8045.4976228944. The cubic root of 64730032 is about 401.5151535280.

Adding to 64730032 its reverse (23003746), we get a palindrome (87733778).

The spelling of 64730032 in words is "sixty-four million, seven hundred thirty thousand, thirty-two".