190023264 has 72 divisors (see below), whose sum is σ = 548048592. Its totient is φ = 62442240.

The previous prime is 190023227. The next prime is 190023287. The reversal of 190023264 is 462320091.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×190023264² = 72217681722427392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15802 + ... + 25094.

It is an arithmetic number, because the mean of its divisors is an integer number (7611786).

Almost surely, 2^190023264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190023264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274024296).

190023264 is an abundant number, since it is smaller than the sum of its proper divisors (358025328).

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

190023264 is a wasteful number, since it uses less digits than its factorization.

190023264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9380 (or 9369 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 190023264 is about 13784.8926002345. The cubic root of 190023264 is about 574.9131705056.

The spelling of 190023264 in words is "one hundred ninety million, twenty-three thousand, two hundred sixty-four".