42997274 has 16 divisors (see below), whose sum is σ = 66456936. Its totient is φ = 20851200.

The previous prime is 42997271. The next prime is 42997289. The reversal of 42997274 is 47279924.

It can be written as a sum of positive squares in 4 ways, for example, as 4644025 + 38353249 = 2155^2 + 6193^2 .

It is not an unprimeable number, because it can be changed into a prime (42997271) 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, 13394 + ... + 16290.

Almost surely, 2^42997274 is an apocalyptic number.

42997274 is a deficient number, since it is larger than the sum of its proper divisors (23459662).

42997274 is a wasteful number, since it uses less digits than its factorization.

42997274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121.

The product of its digits is 254016, while the sum is 44.

The square root of 42997274 is about 6557.2306654563. The cubic root of 42997274 is about 350.3324025775.

The spelling of 42997274 in words is "forty-two million, nine hundred ninety-seven thousand, two hundred seventy-four".