1398064 has 20 divisors (see below), whose sum is σ = 2756520. Its totient is φ = 686720.

The previous prime is 1398053. The next prime is 1398079. The reversal of 1398064 is 4608931.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (137826).

2^1398064 is an apocalyptic number.

It is an amenable number.

1398064 is a deficient number, since it is larger than the sum of its proper divisors (1358456).

1398064 is a wasteful number, since it uses less digits than its factorization.

1398064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1398064 is about 1182.3975642735. The cubic root of 1398064 is about 111.8173041871.

The spelling of 1398064 in words is "one million, three hundred ninety-eight thousand, sixty-four".