38435664 has 20 divisors (see below), whose sum is σ = 99292256. Its totient is φ = 12811872.

The previous prime is 38435647. The next prime is 38435669. The reversal of 38435664 is 46653483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38435669) 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, 400324 + ... + 400419.

Almost surely, 2^38435664 is an apocalyptic number.

It is an amenable number.

38435664 is an abundant number, since it is smaller than the sum of its proper divisors (60856592).

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

38435664 is a wasteful number, since it uses less digits than its factorization.

38435664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800754 (or 800748 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 38435664 is about 6199.6503127193. The cubic root of 38435664 is about 337.4774788813.

The spelling of 38435664 in words is "thirty-eight million, four hundred thirty-five thousand, six hundred sixty-four".