1478398 has 4 divisors (see below), whose sum is σ = 2217600. Its totient is φ = 739198.

The previous prime is 1478387. The next prime is 1478413. The reversal of 1478398 is 8938741.

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

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 a self number, because there is not a number n which added to its sum of digits gives 1478398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369598 + ... + 369601.

It is an arithmetic number, because the mean of its divisors is an integer number (554400).

2^1478398 is an apocalyptic number.

1478398 is a deficient number, since it is larger than the sum of its proper divisors (739202).

1478398 is an equidigital number, since it uses as much as digits as its factorization.

1478398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739201.

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

The square root of 1478398 is about 1215.8939098458. The cubic root of 1478398 is about 113.9192513226.

The spelling of 1478398 in words is "one million, four hundred seventy-eight thousand, three hundred ninety-eight".