190740 has 72 divisors (see below), whose sum is σ = 618912. Its totient is φ = 43520.

The previous prime is 190717. The next prime is 190753. The reversal of 190740 is 47091.

It is a congruent number.

It is an unprimeable number.

190740 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11212 + ... + 11228.

It is an arithmetic number, because the mean of its divisors is an integer number (8596).

2¹⁹⁰⁷⁴⁰ is an apocalyptic number.

190740 is a gapful number since it is divisible by the number (10) 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 190740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309456).

190740 is an abundant number, since it is smaller than the sum of its proper divisors (428172).

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

190740 is a wasteful number, since it uses less digits than its factorization.

190740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 190740 is about 436.7379076746. The cubic root of 190740 is about 57.5635089084.

The spelling of 190740 in words is "one hundred ninety thousand, seven hundred forty".