42624615 has 16 divisors (see below), whose sum is σ = 74399616. Its totient is φ = 20666400.

The previous prime is 42624599. The next prime is 42624671. The reversal of 42624615 is 51642624.

42624615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42624615 - 2⁴ = 42624599 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129001 + ... + 129330.

It is an arithmetic number, because the mean of its divisors is an integer number (4649976).

Almost surely, 2^42624615 is an apocalyptic number.

42624615 is a deficient number, since it is larger than the sum of its proper divisors (31775001).

42624615 is a wasteful number, since it uses less digits than its factorization.

42624615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258350.

The product of its digits is 11520, while the sum is 30.

The square root of 42624615 is about 6528.7529437098. The cubic root of 42624615 is about 349.3173496764.

Subtracting 42624615 from its reverse (51642624), we obtain a square (9018009 = 3003²).

The spelling of 42624615 in words is "forty-two million, six hundred twenty-four thousand, six hundred fifteen".