199057440 has 48 divisors (see below), whose sum is σ = 627032448. Its totient is φ = 53081856.

The previous prime is 199057429. The next prime is 199057451. The reversal of 199057440 is 44750991.

It is an interprime number because it is at equal distance from previous prime (199057429) and next prime (199057451).

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206872 + ... + 207831.

It is an arithmetic number, because the mean of its divisors is an integer number (13063176).

Almost surely, 2^199057440 is an apocalyptic number.

199057440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199057440 is an abundant number, since it is smaller than the sum of its proper divisors (427975008).

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

199057440 is a wasteful number, since it uses less digits than its factorization.

199057440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414721 (or 414713 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 199057440 is about 14108.7717395952. The cubic root of 199057440 is about 583.8834132690.

The spelling of 199057440 in words is "one hundred ninety-nine million, fifty-seven thousand, four hundred forty".