42600664 has 8 divisors (see below), whose sum is σ = 79876260. Its totient is φ = 21300328.

The previous prime is 42600647. The next prime is 42600709. The reversal of 42600664 is 46600624.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2662534 + ... + 2662549.

Almost surely, 2^42600664 is an apocalyptic number.

It is an amenable number.

42600664 is a deficient number, since it is larger than the sum of its proper divisors (37275596).

42600664 is a wasteful number, since it uses less digits than its factorization.

42600664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325089 (or 5325085 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 42600664 is about 6526.9184153014. The cubic root of 42600664 is about 349.2519096532.

It can be divided in two parts, 42600 and 664, that added together give a square (43264 = 208²).

The spelling of 42600664 in words is "forty-two million, six hundred thousand, six hundred sixty-four".