190489939 has 8 divisors (see below), whose sum is σ = 192843648. Its totient is φ = 188145600.

The previous prime is 190489927. The next prime is 190489961. The reversal of 190489939 is 939984091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190489939 - 2⁵ = 190489907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190484939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44094 + ... + 48220.

It is an arithmetic number, because the mean of its divisors is an integer number (24105456).

Almost surely, 2^190489939 is an apocalyptic number.

190489939 is a deficient number, since it is larger than the sum of its proper divisors (2353709).

190489939 is a wasteful number, since it uses less digits than its factorization.

190489939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 190489939 is about 13801.8092654550. The cubic root of 190489939 is about 575.3834256759.

The spelling of 190489939 in words is "one hundred ninety million, four hundred eighty-nine thousand, nine hundred thirty-nine".