190447872 has 144 divisors (see below), whose sum is σ = 556295040. Its totient is φ = 57573376.

The previous prime is 190447871. The next prime is 190447877. The reversal of 190447872 is 278744091.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (190447871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378373 + ... + 378875.

It is an arithmetic number, because the mean of its divisors is an integer number (3863160).

Almost surely, 2^190447872 is an apocalyptic number.

190447872 is a gapful number since it is divisible by the number (12) 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 190447872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278147520).

190447872 is an abundant number, since it is smaller than the sum of its proper divisors (365847168).

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

190447872 is a wasteful number, since it uses less digits than its factorization.

190447872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 190447872 is about 13800.2852144439. The cubic root of 190447872 is about 575.3410674694.

The spelling of 190447872 in words is "one hundred ninety million, four hundred forty-seven thousand, eight hundred seventy-two".