64216032 has 48 divisors (see below), whose sum is σ = 169021440. Its totient is φ = 21347712.

The previous prime is 64216027. The next prime is 64216057. The reversal of 64216032 is 23061246.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 64215993 and 64216011.

It is a congruent number.

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, 49569 + ... + 50847.

It is an arithmetic number, because the mean of its divisors is an integer number (3521280).

Almost surely, 2^64216032 is an apocalyptic number.

It is an amenable number.

64216032 is an abundant number, since it is smaller than the sum of its proper divisors (104805408).

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

64216032 is a wasteful number, since it uses less digits than its factorization.

64216032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815 (or 1807 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 64216032 is about 8013.4906251895. The cubic root of 64216032 is about 400.4495612142.

Adding to 64216032 its reverse (23061246), we get a palindrome (87277278).

The spelling of 64216032 in words is "sixty-four million, two hundred sixteen thousand, thirty-two".