190228864 has 64 divisors (see below), whose sum is σ = 448106400. Its totient is φ = 78704640.

The previous prime is 190228853. The next prime is 190228873. The reversal of 190228864 is 468822091.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22324 + ... + 29644.

Almost surely, 2^190228864 is an apocalyptic number.

190228864 is a gapful number since it is divisible by the number (14) 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 190228864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224053200).

190228864 is an abundant number, since it is smaller than the sum of its proper divisors (257877536).

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

190228864 is an equidigital number, since it uses as much as digits as its factorization.

190228864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7371 (or 7359 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 190228864 is about 13792.3480234513. The cubic root of 190228864 is about 575.1204425706.

The spelling of 190228864 in words is "one hundred ninety million, two hundred twenty-eight thousand, eight hundred sixty-four".