64371432 has 16 divisors (see below), whose sum is σ = 160928640. Its totient is φ = 21457136.

The previous prime is 64371421. The next prime is 64371479. The reversal of 64371432 is 23417346.

It is a self number, because there is not a number n which added to its sum of digits gives 64371432.

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, 1341048 + ... + 1341095.

It is an arithmetic number, because the mean of its divisors is an integer number (10058040).

Almost surely, 2^64371432 is an apocalyptic number.

It is an amenable number.

64371432 is an abundant number, since it is smaller than the sum of its proper divisors (96557208).

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

64371432 is a wasteful number, since it uses less digits than its factorization.

64371432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682152 (or 2682148 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 64371432 is about 8023.1809153228. The cubic root of 64371432 is about 400.7723244941.

Adding to 64371432 its reverse (23417346), we get a palindrome (87788778).

The spelling of 64371432 in words is "sixty-four million, three hundred seventy-one thousand, four hundred thirty-two".