190280979 has 12 divisors (see below), whose sum is σ = 314114736. Its totient is φ = 108731952.

The previous prime is 190280941. The next prime is 190281011. The reversal of 190280979 is 979082091.

It is not a de Polignac number, because 190280979 - 2¹³ = 190272787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190280929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1510104 + ... + 1510229.

It is an arithmetic number, because the mean of its divisors is an integer number (26176228).

Almost surely, 2^190280979 is an apocalyptic number.

190280979 is a deficient number, since it is larger than the sum of its proper divisors (123833757).

190280979 is a wasteful number, since it uses less digits than its factorization.

190280979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020346 (or 3020343 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 190280979 is about 13794.2371662952. The cubic root of 190280979 is about 575.1729576737.

The spelling of 190280979 in words is "one hundred ninety million, two hundred eighty thousand, nine hundred seventy-nine".