190493140 has 48 divisors (see below), whose sum is σ = 416747520. Its totient is φ = 73059840.

The previous prime is 190493137. The next prime is 190493167. The reversal of 190493140 is 41394091.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68701 + ... + 71419.

It is an arithmetic number, because the mean of its divisors is an integer number (8682240).

Almost surely, 2^190493140 is an apocalyptic number.

190493140 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 190493140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208373760).

190493140 is an abundant number, since it is smaller than the sum of its proper divisors (226254380).

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

190493140 is a wasteful number, since it uses less digits than its factorization.

190493140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872 (or 2870 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 190493140 is about 13801.9252280253. The cubic root of 190493140 is about 575.3866485794.

The spelling of 190493140 in words is "one hundred ninety million, four hundred ninety-three thousand, one hundred forty".