42101388 has 108 divisors (see below), whose sum is σ = 128222640. Its totient is φ = 11600064.

The previous prime is 42101377. The next prime is 42101399. The reversal of 42101388 is 88310124.

It is an interprime number because it is at equal distance from previous prime (42101377) and next prime (42101399).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 50745 + ... + 51567.

Almost surely, 2^42101388 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 42101388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64111320).

42101388 is an abundant number, since it is smaller than the sum of its proper divisors (86121252).

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

42101388 is a wasteful number, since it uses less digits than its factorization.

42101388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 42101388 is about 6488.5582373899. The cubic root of 42101388 is about 347.8821439987.

The spelling of 42101388 in words is "forty-two million, one hundred one thousand, three hundred eighty-eight".