42624642 has 8 divisors (see below), whose sum is σ = 85249296. Its totient is φ = 14208212.

The previous prime is 42624599. The next prime is 42624671. The reversal of 42624642 is 24642624.

It is a sphenic number, since it is the product of 3 distinct primes.

42624642 is an admirable number.

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, 3552048 + ... + 3552059.

It is an arithmetic number, because the mean of its divisors is an integer number (10656162).

Almost surely, 2^42624642 is an apocalyptic number.

42624642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42624642 is a wasteful number, since it uses less digits than its factorization.

42624642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104112.

The product of its digits is 18432, while the sum is 30.

The square root of 42624642 is about 6528.7550114857. The cubic root of 42624642 is about 349.3174234332.

The spelling of 42624642 in words is "forty-two million, six hundred twenty-four thousand, six hundred forty-two".