1398874 has 4 divisors (see below), whose sum is σ = 2098314. Its totient is φ = 699436.

The previous prime is 1398871. The next prime is 1398911. The reversal of 1398874 is 4788931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 915849 + 483025 = 957^2 + 695^2 .

It is a super-3 number, since 3×1398874³ = 8212153330954714872, which contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1398871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349717 + ... + 349720.

2^1398874 is an apocalyptic number.

1398874 is a deficient number, since it is larger than the sum of its proper divisors (699440).

1398874 is an equidigital number, since it uses as much as digits as its factorization.

1398874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699439.

The product of its digits is 48384, while the sum is 40.

The square root of 1398874 is about 1182.7400390618. The cubic root of 1398874 is about 111.8388946461.

The spelling of 1398874 in words is "one million, three hundred ninety-eight thousand, eight hundred seventy-four".