1398475 has 18 divisors (see below), whose sum is σ = 1883436. Its totient is φ = 1029600.

The previous prime is 1398473. The next prime is 1398493. The reversal of 1398475 is 5748931.

It is not a de Polignac number, because 1398475 - 2¹ = 1398473 is a prime.

It is a Duffinian number.

1398475 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1398473) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4060 + ... + 4390.

2^1398475 is an apocalyptic number.

1398475 is a deficient number, since it is larger than the sum of its proper divisors (484961).

1398475 is a wasteful number, since it uses less digits than its factorization.

1398475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 349 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 1398475 is about 1182.5713509129. The cubic root of 1398475 is about 111.8282603878.

The spelling of 1398475 in words is "one million, three hundred ninety-eight thousand, four hundred seventy-five".