190794231540 has 480 divisors, whose sum is σ = 694105251840. Its totient is φ = 43385414400.

The previous prime is 190794231539. The next prime is 190794231541. The reversal of 190794231540 is 45132497091.

190794231540 is a `hidden beast` number, since 1 + 9 + 0 + 79 + 4 + 2 + 31 + 540 = 666.

It is an interprime number because it is at equal distance from previous prime (190794231539) and next prime (190794231541).

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 (190794231541) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 34871005 + ... + 34876475.

It is an arithmetic number, because the mean of its divisors is an integer number (1446052608).

Almost surely, 2^190794231540 is an apocalyptic number.

190794231540 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 190794231540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347052625920).

190794231540 is an abundant number, since it is smaller than the sum of its proper divisors (503311020300).

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

190794231540 is a wasteful number, since it uses less digits than its factorization.

190794231540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5625 (or 5614 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 190794231540 in words is "one hundred ninety billion, seven hundred ninety-four million, two hundred thirty-one thousand, five hundred forty".