199274240 has 72 divisors (see below), whose sum is σ = 520753968. Its totient is φ = 72458240.

The previous prime is 199274233. The next prime is 199274269. The reversal of 199274240 is 42472991.

It is a junction number, because it is equal to n+sod(n) for n = 199274194 and 199274203.

It is a congruent number.

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, 7004 + ... + 21156.

It is an arithmetic number, because the mean of its divisors is an integer number (7232694).

Almost surely, 2^199274240 is an apocalyptic number.

199274240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199274240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260376984).

199274240 is an abundant number, since it is smaller than the sum of its proper divisors (321479728).

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

199274240 is a wasteful number, since it uses less digits than its factorization.

199274240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14185 (or 14171 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 199274240 is about 14116.4528122330. The cubic root of 199274240 is about 584.0953118973.

The spelling of 199274240 in words is "one hundred ninety-nine million, two hundred seventy-four thousand, two hundred forty".