190447488 has 384 divisors, whose sum is σ = 725587200. Its totient is φ = 46448640.

The previous prime is 190447487. The next prime is 190447493. The reversal of 190447488 is 884744091.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190447483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1685320 + ... + 1685432.

It is an arithmetic number, because the mean of its divisors is an integer number (1889550).

Almost surely, 2^190447488 is an apocalyptic number.

190447488 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 190447488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362793600).

190447488 is an abundant number, since it is smaller than the sum of its proper divisors (535139712).

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

190447488 is a wasteful number, since it uses less digits than its factorization.

190447488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 190447488 is about 13800.2713016810. The cubic root of 190447488 is about 575.3406807825.

The spelling of 190447488 in words is "one hundred ninety million, four hundred forty-seven thousand, four hundred eighty-eight".