1398267 has 48 divisors (see below), whose sum is σ = 2489760. Its totient is φ = 746496.

The previous prime is 1398263. The next prime is 1398269. The reversal of 1398267 is 7628931.

1398267 is a `hidden beast` number, since 1 + 398 + 267 = 666.

It is not a de Polignac number, because 1398267 - 2² = 1398263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1398263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37773 + ... + 37809.

It is an arithmetic number, because the mean of its divisors is an integer number (51870).

2^1398267 is an apocalyptic number.

1398267 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1398267 is a deficient number, since it is larger than the sum of its proper divisors (1091493).

1398267 is a wasteful number, since it uses less digits than its factorization.

1398267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 89 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1398267 is about 1182.4834036890. The cubic root of 1398267 is about 111.8227159123.

The spelling of 1398267 in words is "one million, three hundred ninety-eight thousand, two hundred sixty-seven".