1398148 has 24 divisors (see below), whose sum is σ = 2683800. Its totient is φ = 634368.

The previous prime is 1398139. The next prime is 1398151. The reversal of 1398148 is 8418931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 161604 + 1236544 = 402^2 + 1112^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618 + ... + 2326.

It is an arithmetic number, because the mean of its divisors is an integer number (111825).

2^1398148 is an apocalyptic number.

It is an amenable number.

1398148 is a deficient number, since it is larger than the sum of its proper divisors (1285652).

1398148 is a wasteful number, since it uses less digits than its factorization.

1398148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 757 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 1398148 is about 1182.4330847875. The cubic root of 1398148 is about 111.8195435852.

The spelling of 1398148 in words is "one million, three hundred ninety-eight thousand, one hundred forty-eight".