1399474 has 8 divisors (see below), whose sum is σ = 2222748. Its totient is φ = 658560.

The previous prime is 1399471. The next prime is 1399477. The reversal of 1399474 is 4749931.

It is an interprime number because it is at equal distance from previous prime (1399471) and next prime (1399477).

It can be written as a sum of positive squares in 2 ways, for example, as 1306449 + 93025 = 1143^2 + 305^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20547 + ... + 20614.

2^1399474 is an apocalyptic number.

1399474 is a deficient number, since it is larger than the sum of its proper divisors (823274).

1399474 is a wasteful number, since it uses less digits than its factorization.

1399474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41180.

The product of its digits is 27216, while the sum is 37.

The square root of 1399474 is about 1182.9936601690. The cubic root of 1399474 is about 111.8548822059.

The spelling of 1399474 in words is "one million, three hundred ninety-nine thousand, four hundred seventy-four".