454388690 has 32 divisors (see below), whose sum is σ = 975386880. Its totient is φ = 149016384.

The previous prime is 454388689. The next prime is 454388717. The reversal of 454388690 is 96883454.

It is a super-2 number, since 2×454388690² = 412938163199832200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139505 + ... + 142724.

It is an arithmetic number, because the mean of its divisors is an integer number (30480840).

Almost surely, 2^454388690 is an apocalyptic number.

454388690 is an abundant number, since it is smaller than the sum of its proper divisors (520998190).

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

454388690 is a wasteful number, since it uses less digits than its factorization.

454388690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282266.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 454388690 is about 21316.3948640477. The cubic root of 454388690 is about 768.7925585975.

The spelling of 454388690 in words is "four hundred fifty-four million, three hundred eighty-eight thousand, six hundred ninety".