42678484 has 12 divisors (see below), whose sum is σ = 78618400. Its totient is φ = 20216088.

The previous prime is 42678479. The next prime is 42678487. The reversal of 42678484 is 48487624.

42678484 = 1322² + 1323² + ... + 1345².

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42678484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42678487) 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, 280704 + ... + 280855.

Almost surely, 2^42678484 is an apocalyptic number.

It is an amenable number.

42678484 is a deficient number, since it is larger than the sum of its proper divisors (35939916).

42678484 is a wasteful number, since it uses less digits than its factorization.

42678484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561582 (or 561580 counting only the distinct ones).

The product of its digits is 344064, while the sum is 43.

The square root of 42678484 is about 6532.8771609452. The cubic root of 42678484 is about 349.4644435152.

The spelling of 42678484 in words is "forty-two million, six hundred seventy-eight thousand, four hundred eighty-four".