42956458 has 4 divisors (see below), whose sum is σ = 64434690. Its totient is φ = 21478228.

The previous prime is 42956443. The next prime is 42956461. The reversal of 42956458 is 85465924.

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., 42419169 + 537289 = 6513^2 + 733^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10739113 + ... + 10739116.

Almost surely, 2^42956458 is an apocalyptic number.

42956458 is a deficient number, since it is larger than the sum of its proper divisors (21478232).

42956458 is a wasteful number, since it uses less digits than its factorization.

42956458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21478231.

The product of its digits is 345600, while the sum is 43.

The square root of 42956458 is about 6554.1176370279. The cubic root of 42956458 is about 350.2215141964.

The spelling of 42956458 in words is "forty-two million, nine hundred fifty-six thousand, four hundred fifty-eight".