42099568 has 80 divisors (see below), whose sum is σ = 99279360. Its totient is φ = 16904448.

The previous prime is 42099557. The next prime is 42099593. The reversal of 42099568 is 86599024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151846 + ... + 152122.

It is an arithmetic number, because the mean of its divisors is an integer number (1240992).

Almost surely, 2^42099568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42099568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49639680).

42099568 is an abundant number, since it is smaller than the sum of its proper divisors (57179792).

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

42099568 is a wasteful number, since it uses less digits than its factorization.

42099568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 42099568 is about 6488.4179890016. The cubic root of 42099568 is about 347.8771310632.

The spelling of 42099568 in words is "forty-two million, ninety-nine thousand, five hundred sixty-eight".