64724132 has 24 divisors (see below), whose sum is σ = 123887232. Its totient is φ = 29343200.

The previous prime is 64724129. The next prime is 64724141. The reversal of 64724132 is 23142746.

It is a junction number, because it is equal to n+sod(n) for n = 64724095 and 64724104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17258 + ... + 20670.

It is an arithmetic number, because the mean of its divisors is an integer number (5161968).

Almost surely, 2^64724132 is an apocalyptic number.

It is an amenable number.

64724132 is a deficient number, since it is larger than the sum of its proper divisors (59163100).

64724132 is a wasteful number, since it uses less digits than its factorization.

64724132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859 (or 3857 counting only the distinct ones).

The product of its digits is 8064, while the sum is 29.

The square root of 64724132 is about 8045.1309498354. The cubic root of 64724132 is about 401.5029540830.

Adding to 64724132 its reverse (23142746), we get a palindrome (87866878).

The spelling of 64724132 in words is "sixty-four million, seven hundred twenty-four thousand, one hundred thirty-two".