42913984 has 28 divisors (see below), whose sum is σ = 90168984. Its totient is φ = 20194304.

The previous prime is 42913979. The next prime is 42913987. The reversal of 42913984 is 48931924.

It is a super-2 number, since 2×42913984² = 3683220045504512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42913987) 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, 18634 + ... + 20809.

Almost surely, 2^42913984 is an apocalyptic number.

It is an amenable number.

42913984 is an abundant number, since it is smaller than the sum of its proper divisors (47255000).

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

42913984 is a wasteful number, since it uses less digits than its factorization.

42913984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39472 (or 39462 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 42913984 is about 6550.8765825651. The cubic root of 42913984 is about 350.1060467771.

The spelling of 42913984 in words is "forty-two million, nine hundred thirteen thousand, nine hundred eighty-four".