1690190194 has 24 divisors (see below), whose sum is σ = 3184824384. Its totient is φ = 658515000.

The previous prime is 1690190179. The next prime is 1690190231. The reversal of 1690190194 is 4910910961.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497182 + ... + 500569.

It is an arithmetic number, because the mean of its divisors is an integer number (132701016).

Almost surely, 2^1690190194 is an apocalyptic number.

1690190194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1690190194 is a deficient number, since it is larger than the sum of its proper divisors (1494634190).

1690190194 is a wasteful number, since it uses less digits than its factorization.

1690190194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997782 (or 997771 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 1690190194 is about 41111.9227718675. The cubic root of 1690190194 is about 1191.1831074220.

The spelling of 1690190194 in words is "one billion, six hundred ninety million, one hundred ninety thousand, one hundred ninety-four".