64435632 has 20 divisors (see below), whose sum is σ = 166458840. Its totient is φ = 21478528.

The previous prime is 64435619. The next prime is 64435633. The reversal of 64435632 is 23653446.

It is a junction number, because it is equal to n+sod(n) for n = 64435593 and 64435602.

It is not an unprimeable number, because it can be changed into a prime (64435633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671157 + ... + 671252.

It is an arithmetic number, because the mean of its divisors is an integer number (8322942).

Almost surely, 2^64435632 is an apocalyptic number.

It is an amenable number.

64435632 is an abundant number, since it is smaller than the sum of its proper divisors (102023208).

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

64435632 is a wasteful number, since it uses less digits than its factorization.

64435632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342420 (or 1342414 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 64435632 is about 8027.1808251714. The cubic root of 64435632 is about 400.9055152253.

The spelling of 64435632 in words is "sixty-four million, four hundred thirty-five thousand, six hundred thirty-two".