1797605040 has 480 divisors, whose sum is σ = 7219537920. Its totient is φ = 361912320.

The previous prime is 1797605021. The next prime is 1797605053. The reversal of 1797605040 is 405067971.

It is a self number, because there is not a number n which added to its sum of digits gives 1797605040.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7521241 + ... + 7521479.

It is an arithmetic number, because the mean of its divisors is an integer number (15040704).

Almost surely, 2^1797605040 is an apocalyptic number.

1797605040 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 1797605040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3609768960).

1797605040 is an abundant number, since it is smaller than the sum of its proper divisors (5421932880).

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

1797605040 is a wasteful number, since it uses less digits than its factorization.

1797605040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 1797605040 is about 42398.1726021299. The cubic root of 1797605040 is about 1215.9006548283.

The spelling of 1797605040 in words is "one billion, seven hundred ninety-seven million, six hundred five thousand, forty".