188720496 has 40 divisors (see below), whose sum is σ = 541698960. Its totient is φ = 62906688.

The previous prime is 188720491. The next prime is 188720551. The reversal of 188720496 is 694027881.

188720496 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×188720496² = 71230851220972032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188720491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217995 + ... + 218858.

It is an arithmetic number, because the mean of its divisors is an integer number (13542474).

Almost surely, 2^188720496 is an apocalyptic number.

188720496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

188720496 is an abundant number, since it is smaller than the sum of its proper divisors (352978464).

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

188720496 is a wasteful number, since it uses less digits than its factorization.

188720496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436870 (or 436858 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 188720496 is about 13737.5578615706. The cubic root of 188720496 is about 573.5963200688.

The spelling of 188720496 in words is "one hundred eighty-eight million, seven hundred twenty thousand, four hundred ninety-six".