1797402736 has 80 divisors (see below), whose sum is σ = 3737260800. Its totient is φ = 834983424.

The previous prime is 1797402713. The next prime is 1797402749. The reversal of 1797402736 is 6372047971.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4289535 + ... + 4289953.

It is an arithmetic number, because the mean of its divisors is an integer number (46715760).

Almost surely, 2^1797402736 is an apocalyptic number.

1797402736 is a gapful number since it is divisible by the number (16) 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 1797402736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1868630400).

1797402736 is an abundant number, since it is smaller than the sum of its proper divisors (1939858064).

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

1797402736 is a wasteful number, since it uses less digits than its factorization.

1797402736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 1797402736 is about 42395.7867718008. The cubic root of 1797402736 is about 1215.8550402858.

The spelling of 1797402736 in words is "one billion, seven hundred ninety-seven million, four hundred two thousand, seven hundred thirty-six".