190799540 has 12 divisors (see below), whose sum is σ = 400679076. Its totient is φ = 76319808.

The previous prime is 190799537. The next prime is 190799573. The reversal of 190799540 is 45997091.

It can be written as a sum of positive squares in 2 ways, for example, as 77334436 + 113465104 = 8794^2 + 10652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 190799491 and 190799500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4769969 + ... + 4770008.

It is an arithmetic number, because the mean of its divisors is an integer number (33389923).

Almost surely, 2^190799540 is an apocalyptic number.

190799540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190799540 is an abundant number, since it is smaller than the sum of its proper divisors (209879536).

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

190799540 is a wasteful number, since it uses less digits than its factorization.

190799540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9539986 (or 9539984 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 190799540 is about 13813.0206689196. The cubic root of 190799540 is about 575.6949781963.

It can be divided in two parts, 19079 and 9540, that multiplied together give a triangular number (182013660 = T₁₉₀₇₉).

The spelling of 190799540 in words is "one hundred ninety million, seven hundred ninety-nine thousand, five hundred forty".