1690804960 has 96 divisors (see below), whose sum is σ = 4321955232. Its totient is φ = 621373440.

The previous prime is 1690804933. The next prime is 1690804961. The reversal of 1690804960 is 694080961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690804961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470370 + ... + 473950.

It is an arithmetic number, because the mean of its divisors is an integer number (45020367).

Almost surely, 2^1690804960 is an apocalyptic number.

1690804960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1690804960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2160977616).

1690804960 is an abundant number, since it is smaller than the sum of its proper divisors (2631150272).

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

1690804960 is a wasteful number, since it uses less digits than its factorization.

1690804960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836 (or 3828 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 1690804960 is about 41119.3988282903. The cubic root of 1690804960 is about 1191.3275113101.

The spelling of 1690804960 in words is "one billion, six hundred ninety million, eight hundred four thousand, nine hundred sixty".