42118680 has 32 divisors (see below), whose sum is σ = 126356400. Its totient is φ = 11231616.

The previous prime is 42118663. The next prime is 42118693. The reversal of 42118680 is 8681124.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 175375 + ... + 175614.

Almost surely, 2^42118680 is an apocalyptic number.

42118680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42118680 is an abundant number, since it is smaller than the sum of its proper divisors (84237720).

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

42118680 is a wasteful number, since it uses less digits than its factorization.

42118680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351003 (or 350999 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 42118680 is about 6489.8906000024. The cubic root of 42118680 is about 347.9297651891.

The spelling of 42118680 in words is "forty-two million, one hundred eighteen thousand, six hundred eighty".