1792897640 has 16 divisors (see below), whose sum is σ = 4034019780. Its totient is φ = 717159040.

The previous prime is 1792897637. The next prime is 1792897693. The reversal of 1792897640 is 467982971.

It can be written as a sum of positive squares in 2 ways, for example, as 1713794404 + 79103236 = 41398^2 + 8894^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22411181 + ... + 22411260.

Almost surely, 2^1792897640 is an apocalyptic number.

1792897640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1792897640 is an abundant number, since it is smaller than the sum of its proper divisors (2241122140).

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

1792897640 is a wasteful number, since it uses less digits than its factorization.

1792897640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44822452 (or 44822448 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The square root of 1792897640 is about 42342.6220255666. The cubic root of 1792897640 is about 1214.8383646971.

The spelling of 1792897640 in words is "one billion, seven hundred ninety-two million, eight hundred ninety-seven thousand, six hundred forty".