42024778 has 16 divisors (see below), whose sum is σ = 65332224. Its totient is φ = 20252880.

The previous prime is 42024769. The next prime is 42024779. The reversal of 42024778 is 87742024.

It is not an unprimeable number, because it can be changed into a prime (42024779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15951 + ... + 18397.

It is an arithmetic number, because the mean of its divisors is an integer number (4083264).

Almost surely, 2^42024778 is an apocalyptic number.

42024778 is a deficient number, since it is larger than the sum of its proper divisors (23307446).

42024778 is a wasteful number, since it uses less digits than its factorization.

42024778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 42024778 is about 6482.6520807460. The cubic root of 42024778 is about 347.6710073906.

The spelling of 42024778 in words is "forty-two million, twenty-four thousand, seven hundred seventy-eight".