1398612 has 24 divisors (see below), whose sum is σ = 3376800. Its totient is φ = 450016.

The previous prime is 1398611. The next prime is 1398619. The reversal of 1398612 is 2168931.

It is a super-2 number, since 2×1398612² = 3912231053088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1398612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398611) 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 7 ways as a sum of consecutive naturals, for example, 1662 + ... + 2357.

It is an arithmetic number, because the mean of its divisors is an integer number (140700).

2^1398612 is an apocalyptic number.

1398612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1398612 is an abundant number, since it is smaller than the sum of its proper divisors (1978188).

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

1398612 is a wasteful number, since it uses less digits than its factorization.

1398612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055 (or 4053 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 1398612 is about 1182.6292741176. The cubic root of 1398612 is about 111.8319119777.

The spelling of 1398612 in words is "one million, three hundred ninety-eight thousand, six hundred twelve".