454397690 has 32 divisors (see below), whose sum is σ = 845752320. Its totient is φ = 175593600.

The previous prime is 454397689. The next prime is 454397717. The reversal of 454397690 is 96793454.

It is a happy number.

It is a super-2 number, since 2×454397690² = 412954521354672200, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 281606 + ... + 283214.

It is an arithmetic number, because the mean of its divisors is an integer number (26429760).

Almost surely, 2^454397690 is an apocalyptic number.

454397690 is a deficient number, since it is larger than the sum of its proper divisors (391354630).

454397690 is a wasteful number, since it uses less digits than its factorization.

454397690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 454397690 is about 21316.6059681179. The cubic root of 454397690 is about 768.7976343454.

The spelling of 454397690 in words is "four hundred fifty-four million, three hundred ninety-seven thousand, six hundred ninety".