42256922 has 4 divisors (see below), whose sum is σ = 63385386. Its totient is φ = 21128460.

The previous prime is 42256919. The next prime is 42256961. The reversal of 42256922 is 22965224.

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., 40819321 + 1437601 = 6389^2 + 1199^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10564229 + ... + 10564232.

Almost surely, 2^42256922 is an apocalyptic number.

42256922 is a deficient number, since it is larger than the sum of its proper divisors (21128464).

42256922 is a wasteful number, since it uses less digits than its factorization.

42256922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21128463.

The product of its digits is 17280, while the sum is 32.

The square root of 42256922 is about 6500.5324397314. The cubic root of 42256922 is about 348.3100080278.

The spelling of 42256922 in words is "forty-two million, two hundred fifty-six thousand, nine hundred twenty-two".