42451466 has 8 divisors (see below), whose sum is σ = 63758340. Its totient is φ = 21198688.

The previous prime is 42451459. The next prime is 42451477. The reversal of 42451466 is 66415424.

It can be written as a sum of positive squares in 2 ways, for example, as 42445225 + 6241 = 6515^2 + 79^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 11501 + ... + 14736.

Almost surely, 2^42451466 is an apocalyptic number.

42451466 is a deficient number, since it is larger than the sum of its proper divisors (21306874).

42451466 is a wasteful number, since it uses less digits than its factorization.

42451466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27048.

The product of its digits is 23040, while the sum is 32.

The square root of 42451466 is about 6515.4789539987. The cubic root of 42451466 is about 348.8437107233.

The spelling of 42451466 in words is "forty-two million, four hundred fifty-one thousand, four hundred sixty-six".