1792640 has 32 divisors (see below), whose sum is σ = 4287060. Its totient is φ = 716800.

The previous prime is 1792621. The next prime is 1792663. The reversal of 1792640 is 462971.

It can be written as a sum of positive squares in 2 ways, for example, as 1784896 + 7744 = 1336^2 + 88^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a nialpdrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761 + ... + 2040.

2^1792640 is an apocalyptic number.

1792640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1792640 is an abundant number, since it is smaller than the sum of its proper divisors (2494420).

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

1792640 is an equidigital number, since it uses as much as digits as its factorization.

1792640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1792640 is about 1338.8950668368. The cubic root of 1792640 is about 121.4780171014.

The spelling of 1792640 in words is "one million, seven hundred ninety-two thousand, six hundred forty".