64431852 has 24 divisors (see below), whose sum is σ = 155526000. Its totient is φ = 20736576.

The previous prime is 64431833. The next prime is 64431883. The reversal of 64431852 is 25813446.

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, 92227 + ... + 92922.

It is an arithmetic number, because the mean of its divisors is an integer number (6480250).

Almost surely, 2^64431852 is an apocalyptic number.

It is an amenable number.

64431852 is an abundant number, since it is smaller than the sum of its proper divisors (91094148).

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

64431852 is a wasteful number, since it uses less digits than its factorization.

64431852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185185 (or 185183 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 64431852 is about 8026.9453716841. The cubic root of 64431852 is about 400.8976756059.

The spelling of 64431852 in words is "sixty-four million, four hundred thirty-one thousand, eight hundred fifty-two".