190641464 has 72 divisors (see below), whose sum is σ = 401670360. Its totient is φ = 84779136.

The previous prime is 190641433. The next prime is 190641467. The reversal of 190641464 is 464146091.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190641467) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1850837 + ... + 1850939.

It is an arithmetic number, because the mean of its divisors is an integer number (5578755).

Almost surely, 2^190641464 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 190641464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200835180).

190641464 is an abundant number, since it is smaller than the sum of its proper divisors (211028896).

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

190641464 is a wasteful number, since it uses less digits than its factorization.

190641464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 190641464 is about 13807.2974908198. The cubic root of 190641464 is about 575.5359479337.

The spelling of 190641464 in words is "one hundred ninety million, six hundred forty-one thousand, four hundred sixty-four".