42000438 has 32 divisors (see below), whose sum is σ = 92814336. Its totient is φ = 12603008.

The previous prime is 42000419. The next prime is 42000457. The reversal of 42000438 is 83400024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42000419) and next prime (42000457).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6606 + ... + 11297.

It is an arithmetic number, because the mean of its divisors is an integer number (2900448).

Almost surely, 2^42000438 is an apocalyptic number.

42000438 is an abundant number, since it is smaller than the sum of its proper divisors (50813898).

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

42000438 is a wasteful number, since it uses less digits than its factorization.

42000438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17948.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 42000438 is about 6480.7744907534. The cubic root of 42000438 is about 347.6038728175.

The spelling of 42000438 in words is "forty-two million, four hundred thirty-eight", and thus it is an aban number.