42451268 has 12 divisors (see below), whose sum is σ = 74337900. Its totient is φ = 21211872.

The previous prime is 42451237. The next prime is 42451291. The reversal of 42451268 is 86215424.

It can be written as a sum of positive squares in 2 ways, for example, as 23020804 + 19430464 = 4798^2 + 4408^2 .

It is a super-2 number, since 2×42451268² = 3604220309615648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7058 + ... + 11606.

It is an arithmetic number, because the mean of its divisors is an integer number (6194825).

Almost surely, 2^42451268 is an apocalyptic number.

It is an amenable number.

42451268 is a deficient number, since it is larger than the sum of its proper divisors (31886632).

42451268 is a wasteful number, since it uses less digits than its factorization.

42451268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886 (or 6884 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 42451268 is about 6515.4637593958. The cubic root of 42451268 is about 348.8431683694.

The spelling of 42451268 in words is "forty-two million, four hundred fifty-one thousand, two hundred sixty-eight".