1398672 has 60 divisors (see below), whose sum is σ = 4275024. Its totient is φ = 423360.

The previous prime is 1398667. The next prime is 1398701. The reversal of 1398672 is 2768931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1143 + ... + 2025.

2^1398672 is an apocalyptic number.

1398672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1398672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2137512).

1398672 is an abundant number, since it is smaller than the sum of its proper divisors (2876352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1398672 is a wasteful number, since it uses less digits than its factorization.

1398672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908 (or 899 counting only the distinct ones).

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

The square root of 1398672 is about 1182.6546410512. The cubic root of 1398672 is about 111.8335111391.

The spelling of 1398672 in words is "one million, three hundred ninety-eight thousand, six hundred seventy-two".