199972260 has 96 divisors (see below), whose sum is σ = 624193920. Its totient is φ = 53149824.

The previous prime is 199972259. The next prime is 199972273. The reversal of 199972260 is 62279991.

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 31 ways as a sum of consecutive naturals, for example, 295042 + ... + 295718.

It is an arithmetic number, because the mean of its divisors is an integer number (6502020).

Almost surely, 2^199972260 is an apocalyptic number.

199972260 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 199972260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312096960).

199972260 is an abundant number, since it is smaller than the sum of its proper divisors (424221660).

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

199972260 is a wasteful number, since it uses less digits than its factorization.

199972260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1234 counting only the distinct ones).

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

The square root of 199972260 is about 14141.1548326153. The cubic root of 199972260 is about 584.7765089751.

The spelling of 199972260 in words is "one hundred ninety-nine million, nine hundred seventy-two thousand, two hundred sixty".