199011240 has 48 divisors (see below), whose sum is σ = 646787700. Its totient is φ = 53069568.

The previous prime is 199011229. The next prime is 199011251. The reversal of 199011240 is 42110991.

It is an interprime number because it is at equal distance from previous prime (199011229) and next prime (199011251).

It can be written as a sum of positive squares in 2 ways, for example, as 172817316 + 26193924 = 13146^2 + 5118^2 .

It is a congruent number.

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, 276045 + ... + 276764.

Almost surely, 2^199011240 is an apocalyptic number.

199011240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199011240 is an abundant number, since it is smaller than the sum of its proper divisors (447776460).

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

199011240 is a wasteful number, since it uses less digits than its factorization.

199011240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552826 (or 552819 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 199011240 is about 14107.1343652777. The cubic root of 199011240 is about 583.8382378648.

The spelling of 199011240 in words is "one hundred ninety-nine million, eleven thousand, two hundred forty".