199079460 has 36 divisors (see below), whose sum is σ = 603874908. Its totient is φ = 53087808.

The previous prime is 199079443. The next prime is 199079471. The reversal of 199079460 is 64970991.

It can be written as a sum of positive squares in 2 ways, for example, as 141562404 + 57517056 = 11898^2 + 7584^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552819 + ... + 553178.

It is an arithmetic number, because the mean of its divisors is an integer number (16774303).

Almost surely, 2^199079460 is an apocalyptic number.

199079460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199079460 is an abundant number, since it is smaller than the sum of its proper divisors (404795448).

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

199079460 is a wasteful number, since it uses less digits than its factorization.

199079460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106012 (or 1106007 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 199079460 is about 14109.5520836063. The cubic root of 199079460 is about 583.9049424629.

The spelling of 199079460 in words is "one hundred ninety-nine million, seventy-nine thousand, four hundred sixty".