42436878 has 24 divisors (see below), whose sum is σ = 93292584. Its totient is φ = 12859440.

The previous prime is 42436847. The next prime is 42436897. The reversal of 42436878 is 87863424.

It is a super-2 number, since 2×42436878² = 3601777228773768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28501 + ... + 29952.

It is an arithmetic number, because the mean of its divisors is an integer number (3887191).

Almost surely, 2^42436878 is an apocalyptic number.

42436878 is an abundant number, since it is smaller than the sum of its proper divisors (50855706).

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

42436878 is a wasteful number, since it uses less digits than its factorization.

42436878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58480 (or 58469 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 42436878 is about 6514.3593698843. The cubic root of 42436878 is about 348.8037473207.

The spelling of 42436878 in words is "forty-two million, four hundred thirty-six thousand, eight hundred seventy-eight".