194038986 has 16 divisors (see below), whose sum is σ = 410906304. Its totient is φ = 60874944.

The previous prime is 194038979. The next prime is 194038993. The reversal of 194038986 is 689830491.

It is an interprime number because it is at equal distance from previous prime (194038979) and next prime (194038993).

It is a super-2 number, since 2×194038986² = 75302256175816392, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 951070 + ... + 951273.

It is an arithmetic number, because the mean of its divisors is an integer number (25681644).

Almost surely, 2^194038986 is an apocalyptic number.

194038986 is an abundant number, since it is smaller than the sum of its proper divisors (216867318).

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

194038986 is a wasteful number, since it uses less digits than its factorization.

194038986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902365.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 194038986 is about 13929.7877227185. The cubic root of 194038986 is about 578.9348126861.

The spelling of 194038986 in words is "one hundred ninety-four million, thirty-eight thousand, nine hundred eighty-six".