453490387 has 4 divisors (see below), whose sum is σ = 518274736. Its totient is φ = 388706040.

The previous prime is 453490369. The next prime is 453490391. The reversal of 453490387 is 783094354.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 453490387 - 2²³ = 445101779 is a prime.

It is a super-2 number, since 2×453490387² = 411307062202819538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (453490327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32392164 + ... + 32392177.

It is an arithmetic number, because the mean of its divisors is an integer number (129568684).

Almost surely, 2^453490387 is an apocalyptic number.

453490387 is a deficient number, since it is larger than the sum of its proper divisors (64784349).

453490387 is an equidigital number, since it uses as much as digits as its factorization.

453490387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64784348.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 453490387 is about 21295.3137333076. The cubic root of 453490387 is about 768.2856032993.

The spelling of 453490387 in words is "four hundred fifty-three million, four hundred ninety thousand, three hundred eighty-seven".