42966558 has 32 divisors (see below), whose sum is σ = 98565120. Its totient is φ = 13859640.

The previous prime is 42966557. The next prime is 42966571. The reversal of 42966558 is 85566924.

42966558 is a `hidden beast` number, since 4 + 2 + 96 + 6 + 558 = 666.

It is a super-2 number, since 2×42966558² = 3692250212734728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42966557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11160 + ... + 14507.

It is an arithmetic number, because the mean of its divisors is an integer number (3080160).

Almost surely, 2^42966558 is an apocalyptic number.

42966558 is an abundant number, since it is smaller than the sum of its proper divisors (55598562).

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

42966558 is a wasteful number, since it uses less digits than its factorization.

42966558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25709 (or 25703 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 42966558 is about 6554.8880997314. Note that the first 3 decimals coincide. The cubic root of 42966558 is about 350.2489602838.

The spelling of 42966558 in words is "forty-two million, nine hundred sixty-six thousand, five hundred fifty-eight".