1398964 has 24 divisors (see below), whose sum is σ = 2963520. Its totient is φ = 564096.

The previous prime is 1398911. The next prime is 1398967. The reversal of 1398964 is 4698931.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994 + ... + 1945.

It is an arithmetic number, because the mean of its divisors is an integer number (123480).

2^1398964 is an apocalyptic number.

1398964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1398964 is an abundant number, since it is smaller than the sum of its proper divisors (1564556).

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

1398964 is a wasteful number, since it uses less digits than its factorization.

1398964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967 (or 2965 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 1398964 is about 1182.7780856949. The cubic root of 1398964 is about 111.8412930715.

The spelling of 1398964 in words is "one million, three hundred ninety-eight thousand, nine hundred sixty-four".