42979000 has 32 divisors (see below), whose sum is σ = 100573200. Its totient is φ = 17191200.

The previous prime is 42978983. The next prime is 42979031. The reversal of 42979000 is 97924.

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, 20490 + ... + 22489.

Almost surely, 2^42979000 is an apocalyptic number.

42979000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42979000 is an abundant number, since it is smaller than the sum of its proper divisors (57594200).

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

42979000 is a wasteful number, since it uses less digits than its factorization.

42979000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43000 (or 42986 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 42979000 is about 6555.8370937661. The cubic root of 42979000 is about 350.2827646904.

The spelling of 42979000 in words is "forty-two million, nine hundred seventy-nine thousand".