199670454 has 32 divisors (see below), whose sum is σ = 445092480. Its totient is φ = 66349800.

The previous prime is 199670447. The next prime is 199670459. The reversal of 199670454 is 454076991.

199670454 is a `hidden beast` number, since 199 + 6 + 7 + 0 + 454 = 666.

It is a super-2 number, since 2×199670454² = 79736580401132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199670459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12289 + ... + 23459.

It is an arithmetic number, because the mean of its divisors is an integer number (13909140).

Almost surely, 2^199670454 is an apocalyptic number.

199670454 is an abundant number, since it is smaller than the sum of its proper divisors (245422026).

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

199670454 is a wasteful number, since it uses less digits than its factorization.

199670454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11513 (or 11507 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 199670454 is about 14130.4796096948. The cubic root of 199670454 is about 584.4821716144.

The spelling of 199670454 in words is "one hundred ninety-nine million, six hundred seventy thousand, four hundred fifty-four".