42264478 has 8 divisors (see below), whose sum is σ = 66153168. Its totient is φ = 20213424.

The previous prime is 42264463. The next prime is 42264487. The reversal of 42264478 is 87446224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42264478² = 3572572201224968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459351 + ... + 459442.

It is an arithmetic number, because the mean of its divisors is an integer number (8269146).

Almost surely, 2^42264478 is an apocalyptic number.

42264478 is a deficient number, since it is larger than the sum of its proper divisors (23888690).

42264478 is a wasteful number, since it uses less digits than its factorization.

42264478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918818.

The product of its digits is 86016, while the sum is 37.

The square root of 42264478 is about 6501.1135969155. The cubic root of 42264478 is about 348.3307673374.

The spelling of 42264478 in words is "forty-two million, two hundred sixty-four thousand, four hundred seventy-eight".