42455624 has 8 divisors (see below), whose sum is σ = 79604310. Its totient is φ = 21227808.

The previous prime is 42455603. The next prime is 42455641. The reversal of 42455624 is 42655424.

It can be written as a sum of positive squares in only one way, i.e., 26853124 + 15602500 = 5182^2 + 3950^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2653469 + ... + 2653484.

Almost surely, 2^42455624 is an apocalyptic number.

It is an amenable number.

42455624 is a deficient number, since it is larger than the sum of its proper divisors (37148686).

42455624 is a wasteful number, since it uses less digits than its factorization.

42455624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306959 (or 5306955 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 42455624 is about 6515.7980324746. The cubic root of 42455624 is about 348.8550997670.

The spelling of 42455624 in words is "forty-two million, four hundred fifty-five thousand, six hundred twenty-four".