42023988 has 24 divisors (see below), whose sum is σ = 108951360. Its totient is φ = 14007960.

The previous prime is 42023959. The next prime is 42023999. The reversal of 42023988 is 88932024.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194448 + ... + 194663.

It is an arithmetic number, because the mean of its divisors is an integer number (4539640).

Almost surely, 2^42023988 is an apocalyptic number.

It is an amenable number.

42023988 is an abundant number, since it is smaller than the sum of its proper divisors (66927372).

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

42023988 is a wasteful number, since it uses less digits than its factorization.

42023988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389124 (or 389116 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 42023988 is about 6482.5911486072. The cubic root of 42023988 is about 347.6688288201.

The spelling of 42023988 in words is "forty-two million, twenty-three thousand, nine hundred eighty-eight".