1690734384 has 200 divisors, whose sum is σ = 5127046848. Its totient is φ = 537338880.

The previous prime is 1690734341. The next prime is 1690734407. The reversal of 1690734384 is 4834370961.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2497054 + ... + 2497730.

Almost surely, 2^1690734384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1690734384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2563523424).

1690734384 is an abundant number, since it is smaller than the sum of its proper divisors (3436312464).

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

1690734384 is a wasteful number, since it uses less digits than its factorization.

1690734384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 1690734384 is about 41118.5406355819. The cubic root of 1690734384 is about 1191.3109353197.

The spelling of 1690734384 in words is "one billion, six hundred ninety million, seven hundred thirty-four thousand, three hundred eighty-four".