42874236 has 18 divisors (see below), whose sum is σ = 108376632. Its totient is φ = 14291400.

The previous prime is 42874229. The next prime is 42874253. The reversal of 42874236 is 63247824.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×42874236² = 3676400225167392, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1190951 = 42874236 / (4 + 2 + 8 + 7 + 4 + 2 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 42874236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 595440 + ... + 595511.

It is an arithmetic number, because the mean of its divisors is an integer number (6020924).

Almost surely, 2^42874236 is an apocalyptic number.

It is an amenable number.

42874236 is an abundant number, since it is smaller than the sum of its proper divisors (65502396).

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

42874236 is a wasteful number, since it uses less digits than its factorization.

42874236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190961 (or 1190956 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 42874236 is about 6547.8420872834. The cubic root of 42874236 is about 349.9979210761.

The spelling of 42874236 in words is "forty-two million, eight hundred seventy-four thousand, two hundred thirty-six".