42099432 has 16 divisors (see below), whose sum is σ = 105248640. Its totient is φ = 14033136.

The previous prime is 42099413. The next prime is 42099433. The reversal of 42099432 is 23499024.

It is a junction number, because it is equal to n+sod(n) for n = 42099393 and 42099402.

It is not an unprimeable number, because it can be changed into a prime (42099433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877048 + ... + 877095.

It is an arithmetic number, because the mean of its divisors is an integer number (6578040).

Almost surely, 2^42099432 is an apocalyptic number.

It is an amenable number.

42099432 is an abundant number, since it is smaller than the sum of its proper divisors (63149208).

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

42099432 is a wasteful number, since it uses less digits than its factorization.

42099432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754152 (or 1754148 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 42099432 is about 6488.4075087806. The cubic root of 42099432 is about 347.8767564644.

The spelling of 42099432 in words is "forty-two million, ninety-nine thousand, four hundred thirty-two".