42274731 has 16 divisors (see below), whose sum is σ = 59609088. Its totient is φ = 26606400.

The previous prime is 42274723. The next prime is 42274741. The reversal of 42274731 is 13747224.

42274731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42274731 - 2³ = 42274723 is a prime.

It is a super-2 number, since 2×42274731² = 3574305762244722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42274711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1731 + ... + 9356.

It is an arithmetic number, because the mean of its divisors is an integer number (3725568).

Almost surely, 2^42274731 is an apocalyptic number.

42274731 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42274731 is a deficient number, since it is larger than the sum of its proper divisors (17334357).

42274731 is a wasteful number, since it uses less digits than its factorization.

42274731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11162.

The product of its digits is 9408, while the sum is 30.

The square root of 42274731 is about 6501.9021063070. The cubic root of 42274731 is about 348.3589324125.

The spelling of 42274731 in words is "forty-two million, two hundred seventy-four thousand, seven hundred thirty-one".