42626988 has 18 divisors (see below), whose sum is σ = 107751644. Its totient is φ = 14208984.

The previous prime is 42626977. The next prime is 42626989. The reversal of 42626988 is 88962624.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (42626989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 592006 + ... + 592077.

Almost surely, 2^42626988 is an apocalyptic number.

It is an amenable number.

42626988 is an abundant number, since it is smaller than the sum of its proper divisors (65124656).

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

42626988 is a wasteful number, since it uses less digits than its factorization.

42626988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184093 (or 1184088 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 42626988 is about 6528.9346757339. The cubic root of 42626988 is about 349.3238319613.

The spelling of 42626988 in words is "forty-two million, six hundred twenty-six thousand, nine hundred eighty-eight".