42718464 has 54 divisors (see below), whose sum is σ = 123174506. Its totient is φ = 14238720.

The previous prime is 42718451. The next prime is 42718469. The reversal of 42718464 is 46481724.

It can be written as a sum of positive squares in only one way, i.e., 36000000 + 6718464 = 6000^2 + 2592^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42718469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6967 + ... + 11574.

Almost surely, 2^42718464 is an apocalyptic number.

It is an amenable number.

42718464 is an abundant number, since it is smaller than the sum of its proper divisors (80456042).

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

42718464 is a wasteful number, since it uses less digits than its factorization.

42718464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18563 (or 18546 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 42718464 is about 6535.9363521993. The cubic root of 42718464 is about 349.5735322697.

The spelling of 42718464 in words is "forty-two million, seven hundred eighteen thousand, four hundred sixty-four".