192990720 has 160 divisors (see below), whose sum is σ = 664769952. Its totient is φ = 47480832.

The previous prime is 192990703. The next prime is 192990727. The reversal of 192990720 is 27099291.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×192990720² = 74490836012236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192990727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98874 + ... + 100806.

Almost surely, 2^192990720 is an apocalyptic number.

192990720 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 192990720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332384976).

192990720 is an abundant number, since it is smaller than the sum of its proper divisors (471779232).

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

192990720 is a wasteful number, since it uses less digits than its factorization.

192990720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972 (or 1956 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 192990720 is about 13892.1099909265. The cubic root of 192990720 is about 577.8903940027.

The spelling of 192990720 in words is "one hundred ninety-two million, nine hundred ninety thousand, seven hundred twenty".