1398124 has 48 divisors (see below), whose sum is σ = 3161088. Its totient is φ = 525888.

The previous prime is 1398121. The next prime is 1398127. The reversal of 1398124 is 4218931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1398121) and next prime (1398127).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1398092 and 1398101.

It is not an unprimeable number, because it can be changed into a prime (1398121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8289 + ... + 8455.

It is an arithmetic number, because the mean of its divisors is an integer number (65856).

2^1398124 is an apocalyptic number.

1398124 is a gapful number since it is divisible by the number (14) 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 1398124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1580544).

1398124 is an abundant number, since it is smaller than the sum of its proper divisors (1762964).

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

1398124 is a wasteful number, since it uses less digits than its factorization.

1398124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 212 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 1398124 is about 1182.4229361781. The cubic root of 1398124 is about 111.8189037663.

The spelling of 1398124 in words is "one million, three hundred ninety-eight thousand, one hundred twenty-four".