42992100 has 72 divisors (see below), whose sum is σ = 138220320. Its totient is φ = 11463840.

The previous prime is 42992087. The next prime is 42992143. The reversal of 42992100 is 129924.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5262 + ... + 10661.

Almost surely, 2^42992100 is an apocalyptic number.

It is an amenable number.

42992100 is an abundant number, since it is smaller than the sum of its proper divisors (95228220).

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

42992100 is a wasteful number, since it uses less digits than its factorization.

42992100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15946 (or 15933 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 42992100 is about 6556.8361272797. The cubic root of 42992100 is about 350.3183498063.

It can be divided in two parts, 429 and 92100, that added together give a palindrome (92529).

The spelling of 42992100 in words is "forty-two million, nine hundred ninety-two thousand, one hundred".