42999900 has 36 divisors (see below), whose sum is σ = 124413912. Its totient is φ = 11466560.

The previous prime is 42999881. The next prime is 42999911. The reversal of 42999900 is 999924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71367 + ... + 71966.

It is an arithmetic number, because the mean of its divisors is an integer number (3455942).

Almost surely, 2^42999900 is an apocalyptic number.

It is an amenable number.

42999900 is an abundant number, since it is smaller than the sum of its proper divisors (81414012).

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

42999900 is a wasteful number, since it uses less digits than its factorization.

42999900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143350 (or 143343 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 42999900 is about 6557.4308993691. The cubic root of 42999900 is about 350.3395344572.

The spelling of 42999900 in words is "forty-two million, nine hundred ninety-nine thousand, nine hundred".