453664490 has 16 divisors (see below), whose sum is σ = 823824648. Its totient is φ = 179859456.

The previous prime is 453664483. The next prime is 453664493. The reversal of 453664490 is 94466354.

It can be written as a sum of positive squares in 4 ways, for example, as 370909081 + 82755409 = 19259^2 + 9097^2 .

It is a super-2 number, since 2×453664490² = 411622938973920200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (453664493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199607 + ... + 201866.

Almost surely, 2^453664490 is an apocalyptic number.

453664490 is a deficient number, since it is larger than the sum of its proper divisors (370160158).

453664490 is a wasteful number, since it uses less digits than its factorization.

453664490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401593.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 453664490 is about 21299.4011652910. The cubic root of 453664490 is about 768.3839102080.

The spelling of 453664490 in words is "four hundred fifty-three million, six hundred sixty-four thousand, four hundred ninety".