1798402 has 8 divisors (see below), whose sum is σ = 2742012. Its totient is φ = 884400.

The previous prime is 1798387. The next prime is 1798409. The reversal of 1798402 is 2048971.

It can be written as a sum of positive squares in 2 ways, for example, as 1798281 + 121 = 1341^2 + 11^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1798409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7249 + ... + 7492.

2^1798402 is an apocalyptic number.

1798402 is a deficient number, since it is larger than the sum of its proper divisors (943610).

1798402 is a wasteful number, since it uses less digits than its factorization.

1798402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14804.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1798402 is about 1341.0451148265. The cubic root of 1798402 is about 121.6080316284.

The spelling of 1798402 in words is "one million, seven hundred ninety-eight thousand, four hundred two".