1794992640 has 320 divisors, whose sum is σ = 6630218496. Its totient is φ = 405798912.

The previous prime is 1794992627. The next prime is 1794992687. The reversal of 1794992640 is 462994971.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

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, 9300384 + ... + 9300576.

Almost surely, 2^1794992640 is an apocalyptic number.

1794992640 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 1794992640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3315109248).

1794992640 is an abundant number, since it is smaller than the sum of its proper divisors (4835225856).

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

1794992640 is a wasteful number, since it uses less digits than its factorization.

1794992640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 1794992640 is about 42367.3534693873. The cubic root of 1794992640 is about 1215.3113598549.

The spelling of 1794992640 in words is "one billion, seven hundred ninety-four million, nine hundred ninety-two thousand, six hundred forty".