42707624 has 8 divisors (see below), whose sum is σ = 80076810. Its totient is φ = 21353808.

The previous prime is 42707603. The next prime is 42707647. The reversal of 42707624 is 42670724.

It can be written as a sum of positive squares in only one way, i.e., 31024900 + 11682724 = 5570^2 + 3418^2 .

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

It is a super-2 number, since 2×42707624² = 3647882295450752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2669219 + ... + 2669234.

Almost surely, 2^42707624 is an apocalyptic number.

It is an amenable number.

42707624 is a deficient number, since it is larger than the sum of its proper divisors (37369186).

42707624 is a wasteful number, since it uses less digits than its factorization.

42707624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338459 (or 5338455 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 42707624 is about 6535.1070381441. The cubic root of 42707624 is about 349.5439611560.

The spelling of 42707624 in words is "forty-two million, seven hundred seven thousand, six hundred twenty-four".