42774090 has 32 divisors (see below), whose sum is σ = 103723200. Its totient is φ = 11288064.

The previous prime is 42774049. The next prime is 42774097. The reversal of 42774090 is 9047724.

It is not an unprimeable number, because it can be changed into a prime (42774097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4440 + ... + 10259.

It is an arithmetic number, because the mean of its divisors is an integer number (3241350).

Almost surely, 2^42774090 is an apocalyptic number.

42774090 is an abundant number, since it is smaller than the sum of its proper divisors (60949110).

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

42774090 is a wasteful number, since it uses less digits than its factorization.

42774090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14806.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 42774090 is about 6540.1903642019. The cubic root of 42774090 is about 349.7251992640.

The spelling of 42774090 in words is "forty-two million, seven hundred seventy-four thousand, ninety".