454638466 has 4 divisors (see below), whose sum is σ = 681957702. Its totient is φ = 227319232.

The previous prime is 454638421. The next prime is 454638491. The reversal of 454638466 is 664836454.

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., 237930625 + 216707841 = 15425^2 + 14721^2 .

It is a super-2 number, since 2×454638466² = 413392269533666312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113659615 + ... + 113659618.

Almost surely, 2^454638466 is an apocalyptic number.

454638466 is a deficient number, since it is larger than the sum of its proper divisors (227319236).

454638466 is a wasteful number, since it uses less digits than its factorization.

454638466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227319235.

The product of its digits is 1658880, while the sum is 46.

The square root of 454638466 is about 21322.2528359458. The cubic root of 454638466 is about 768.9334003920.

The spelling of 454638466 in words is "four hundred fifty-four million, six hundred thirty-eight thousand, four hundred sixty-six".