190090368 has 128 divisors (see below), whose sum is σ = 604329600. Its totient is φ = 58475520.

The previous prime is 190090343. The next prime is 190090387. The reversal of 190090368 is 863090091.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×190090368² = 72268696012750848, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42813 + ... + 47043.

It is an arithmetic number, because the mean of its divisors is an integer number (4721325).

Almost surely, 2^190090368 is an apocalyptic number.

190090368 is a gapful number since it is divisible by the number (18) 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 190090368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302164800).

190090368 is an abundant number, since it is smaller than the sum of its proper divisors (414239232).

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

190090368 is a wasteful number, since it uses less digits than its factorization.

190090368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 190090368 is about 13787.3263543009. The cubic root of 190090368 is about 574.9808366644.

The spelling of 190090368 in words is "one hundred ninety million, ninety thousand, three hundred sixty-eight".