1797996404 has 54 divisors (see below), whose sum is σ = 3390072210. Its totient is φ = 833384160.

The previous prime is 1797996397. The next prime is 1797996407. The reversal of 1797996404 is 4046997971.

It can be written as a sum of positive squares in only one way, i.e., 1549996900 + 247999504 = 39370^2 + 15748^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1797996404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797996407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14157389 + ... + 14157515.

It is an arithmetic number, because the mean of its divisors is an integer number (62779115).

Almost surely, 2^1797996404 is an apocalyptic number.

It is an amenable number.

1797996404 is a deficient number, since it is larger than the sum of its proper divisors (1592075806).

1797996404 is a wasteful number, since it uses less digits than its factorization.

1797996404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 1797996404 is about 42402.7876913771. The cubic root of 1797996404 is about 1215.9888880059.

The spelling of 1797996404 in words is "one billion, seven hundred ninety-seven million, nine hundred ninety-six thousand, four hundred four".