199464720 has 160 divisors (see below), whose sum is σ = 761117952. Its totient is φ = 42080256.

The previous prime is 199464709. The next prime is 199464767. The reversal of 199464720 is 27464991.

199464720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 17274 + ... + 26406.

Almost surely, 2^199464720 is an apocalyptic number.

199464720 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 199464720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380558976).

199464720 is an abundant number, since it is smaller than the sum of its proper divisors (561653232).

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

199464720 is a wasteful number, since it uses less digits than its factorization.

199464720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9169 (or 9163 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 199464720 is about 14123.1979381442. The cubic root of 199464720 is about 584.2813587647.

The spelling of 199464720 in words is "one hundred ninety-nine million, four hundred sixty-four thousand, seven hundred twenty".