42981396 has 24 divisors (see below), whose sum is σ = 100615200. Its totient is φ = 14280672.

The previous prime is 42981391. The next prime is 42981397. The reversal of 42981396 is 69318924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42981391) 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, 1846 + ... + 9453.

It is an arithmetic number, because the mean of its divisors is an integer number (4192300).

Almost surely, 2^42981396 is an apocalyptic number.

It is an amenable number.

42981396 is an abundant number, since it is smaller than the sum of its proper divisors (57633804).

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

42981396 is a wasteful number, since it uses less digits than its factorization.

42981396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11623 (or 11621 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 42981396 is about 6556.0198291341. The cubic root of 42981396 is about 350.2892737755.

The spelling of 42981396 in words is "forty-two million, nine hundred eighty-one thousand, three hundred ninety-six".