454149090 has 24 divisors (see below), whose sum is σ = 1180787868. Its totient is φ = 121106400.

The previous prime is 454149043. The next prime is 454149161. The reversal of 454149090 is 90941454.

It is a happy number.

454149090 is a `hidden beast` number, since 45 + 41 + 490 + 90 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 443397249 + 10751841 = 21057^2 + 3279^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2522961 + ... + 2523140.

Almost surely, 2^454149090 is an apocalyptic number.

454149090 is an abundant number, since it is smaller than the sum of its proper divisors (726638778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

454149090 is a wasteful number, since it uses less digits than its factorization.

454149090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046114 (or 5046111 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 454149090 is about 21310.7740356844. The cubic root of 454149090 is about 768.6574062581.

The spelling of 454149090 in words is "four hundred fifty-four million, one hundred forty-nine thousand, ninety".