42811392 has 120 divisors (see below), whose sum is σ = 124776736. Its totient is φ = 12976128.

The previous prime is 42811277. The next prime is 42811393. The reversal of 42811392 is 29311824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42811393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638943 + ... + 639009.

Almost surely, 2^42811392 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 42811392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62388368).

42811392 is an abundant number, since it is smaller than the sum of its proper divisors (81965344).

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

42811392 is an equidigital number, since it uses as much as digits as its factorization.

42811392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 85 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 42811392 is about 6543.0414945956. The cubic root of 42811392 is about 349.8268313427.

The spelling of 42811392 in words is "forty-two million, eight hundred eleven thousand, three hundred ninety-two".