1869368690 has 32 divisors (see below), whose sum is σ = 3874932864. Its totient is φ = 636030720.

The previous prime is 1869368687. The next prime is 1869368717. The reversal of 1869368690 is 968639681.

It is a super-2 number, since 2×1869368690² = 6989078598304632200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92759 + ... + 111098.

It is an arithmetic number, because the mean of its divisors is an integer number (121091652).

Almost surely, 2^1869368690 is an apocalyptic number.

1869368690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1869368690 is an abundant number, since it is smaller than the sum of its proper divisors (2005564174).

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

1869368690 is a wasteful number, since it uses less digits than its factorization.

1869368690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204002.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 1869368690 is about 43236.1965255965. The cubic root of 1869368690 is about 1231.8703099168.

The spelling of 1869368690 in words is "one billion, eight hundred sixty-nine million, three hundred sixty-eight thousand, six hundred ninety".