1398630 has 32 divisors (see below), whose sum is σ = 3504384. Its totient is φ = 356576.

The previous prime is 1398623. The next prime is 1398659. The reversal of 1398630 is 368931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324 + ... + 1703.

It is an arithmetic number, because the mean of its divisors is an integer number (109512).

2^1398630 is an apocalyptic number.

1398630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1398630 is an abundant number, since it is smaller than the sum of its proper divisors (2105754).

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

1398630 is a wasteful number, since it uses less digits than its factorization.

1398630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1398630 is about 1182.6368842548. The cubic root of 1398630 is about 111.8323917309.

The spelling of 1398630 in words is "one million, three hundred ninety-eight thousand, six hundred thirty".