1690410894 has 64 divisors (see below), whose sum is σ = 3551772672. Its totient is φ = 535852800.

The previous prime is 1690410889. The next prime is 1690410901. The reversal of 1690410894 is 4980140961.

1690410894 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1905319 + ... + 1906205.

It is an arithmetic number, because the mean of its divisors is an integer number (55496448).

Almost surely, 2^1690410894 is an apocalyptic number.

1690410894 is an abundant number, since it is smaller than the sum of its proper divisors (1861361778).

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

1690410894 is a wasteful number, since it uses less digits than its factorization.

1690410894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1690410894 is about 41114.6068204476. The cubic root of 1690410894 is about 1191.2349522126.

The spelling of 1690410894 in words is "one billion, six hundred ninety million, four hundred ten thousand, eight hundred ninety-four".