42265815 has 8 divisors (see below), whose sum is σ = 67625328. Its totient is φ = 22541760.

The previous prime is 42265777. The next prime is 42265829. The reversal of 42265815 is 51856224.

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

It is not a de Polignac number, because 42265815 - 2⁷ = 42265687 is a prime.

It is a super-2 number, since 2×42265815² = 3572798235228450, 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 7 ways as a sum of consecutive naturals, for example, 1408846 + ... + 1408875.

It is an arithmetic number, because the mean of its divisors is an integer number (8453166).

Almost surely, 2^42265815 is an apocalyptic number.

42265815 is a deficient number, since it is larger than the sum of its proper divisors (25359513).

42265815 is a wasteful number, since it uses less digits than its factorization.

42265815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817729.

The product of its digits is 19200, while the sum is 33.

The square root of 42265815 is about 6501.2164246393. The cubic root of 42265815 is about 348.3344403456.

The spelling of 42265815 in words is "forty-two million, two hundred sixty-five thousand, eight hundred fifteen".