42023624 has 16 divisors (see below), whose sum is σ = 78919920. Its totient is φ = 20978320.

The previous prime is 42023617. The next prime is 42023633. The reversal of 42023624 is 42632024.

It is a self number, because there is not a number n which added to its sum of digits gives 42023624.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619 + ... + 9309.

It is an arithmetic number, because the mean of its divisors is an integer number (4932495).

Almost surely, 2^42023624 is an apocalyptic number.

It is an amenable number.

42023624 is a deficient number, since it is larger than the sum of its proper divisors (36896296).

42023624 is a wasteful number, since it uses less digits than its factorization.

42023624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380 (or 8376 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 42023624 is about 6482.5630733530. The cubic root of 42023624 is about 347.6678250139.

Adding to 42023624 its reverse (42632024), we get a palindrome (84655648).

Subtracting 42023624 from its reverse (42632024), we obtain a square (608400 = 780²).

The spelling of 42023624 in words is "forty-two million, twenty-three thousand, six hundred twenty-four".