190979040 has 192 divisors, whose sum is σ = 694987776. Its totient is φ = 43180032.

The previous prime is 190979027. The next prime is 190979069. The reversal of 190979040 is 40979091.

It is a self number, because there is not a number n which added to its sum of digits gives 190979040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379429 + ... + 379931.

It is an arithmetic number, because the mean of its divisors is an integer number (3619728).

Almost surely, 2^190979040 is an apocalyptic number.

190979040 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 190979040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347493888).

190979040 is an abundant number, since it is smaller than the sum of its proper divisors (504008736).

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

190979040 is a wasteful number, since it uses less digits than its factorization.

190979040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 190979040 is about 13819.5166340940. The cubic root of 190979040 is about 575.8754553256.

The spelling of 190979040 in words is "one hundred ninety million, nine hundred seventy-nine thousand, forty".