190489725 has 60 divisors (see below), whose sum is σ = 371499040. Its totient is φ = 96228000.

The previous prime is 190489723. The next prime is 190489807. The reversal of 190489725 is 527984091.

It is not a de Polignac number, because 190489725 - 2¹ = 190489723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190489723) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 36000 + ... + 40950.

Almost surely, 2^190489725 is an apocalyptic number.

190489725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190489725 is a deficient number, since it is larger than the sum of its proper divisors (181009315).

190489725 is a wasteful number, since it uses less digits than its factorization.

190489725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4992 (or 4978 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 190489725 is about 13801.8015128461. The cubic root of 190489725 is about 575.3832102103.

The spelling of 190489725 in words is "one hundred ninety million, four hundred eighty-nine thousand, seven hundred twenty-five".