42973274 has 4 divisors (see below), whose sum is σ = 64459914. Its totient is φ = 21486636.

The previous prime is 42973261. The next prime is 42973279. The reversal of 42973274 is 47237924.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27489049 + 15484225 = 5243^2 + 3935^2 .

It is not an unprimeable number, because it can be changed into a prime (42973279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10743317 + ... + 10743320.

Almost surely, 2^42973274 is an apocalyptic number.

42973274 is a deficient number, since it is larger than the sum of its proper divisors (21486640).

42973274 is a wasteful number, since it uses less digits than its factorization.

42973274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21486639.

The product of its digits is 84672, while the sum is 38.

The square root of 42973274 is about 6555.4003691613. The cubic root of 42973274 is about 350.2672081924.

The spelling of 42973274 in words is "forty-two million, nine hundred seventy-three thousand, two hundred seventy-four".