190623456 has 120 divisors (see below), whose sum is σ = 564772824. Its totient is φ = 63072000.

The previous prime is 190623421. The next prime is 190623469. The reversal of 190623456 is 654326091.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 190623456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 650446 + ... + 650738.

Almost surely, 2^190623456 is an apocalyptic number.

190623456 is a gapful number since it is divisible by the number (16) 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 190623456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282386412).

190623456 is an abundant number, since it is smaller than the sum of its proper divisors (374149368).

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

190623456 is a wasteful number, since it uses less digits than its factorization.

190623456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 190623456 is about 13806.6453564941. The cubic root of 190623456 is about 575.5178256472.

The spelling of 190623456 in words is "one hundred ninety million, six hundred twenty-three thousand, four hundred fifty-six".