190440384 has 56 divisors (see below), whose sum is σ = 505236480. Its totient is φ = 63308544.

The previous prime is 190440373. The next prime is 190440403. The reversal of 190440384 is 483044091.

It is a happy number.

190440384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 83937 + ... + 86175.

It is an arithmetic number, because the mean of its divisors is an integer number (9022080).

Almost surely, 2^190440384 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 190440384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252618240).

190440384 is an abundant number, since it is smaller than the sum of its proper divisors (314796096).

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

190440384 is a wasteful number, since it uses less digits than its factorization.

190440384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 190440384 is about 13800.0139130365. The cubic root of 190440384 is about 575.3335269802. Note that the first 3 decimals are identical.

The spelling of 190440384 in words is "one hundred ninety million, four hundred forty thousand, three hundred eighty-four".