1396512 has 72 divisors (see below), whose sum is σ = 4288284. Its totient is φ = 428544.

The previous prime is 1396487. The next prime is 1396513. The reversal of 1396512 is 2156931.

1396512 is a `hidden beast` number, since 1 + 3 + 9 + 651 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1354896 + 41616 = 1164^2 + 204^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1396512² = 3900491532288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1396513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3558 + ... + 3930.

2^1396512 is an apocalyptic number.

1396512 is a gapful number since it is divisible by the number (12) 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 1396512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2144142).

1396512 is an abundant number, since it is smaller than the sum of its proper divisors (2891772).

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

1396512 is a wasteful number, since it uses less digits than its factorization.

1396512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 391 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 1396512 is about 1181.7410883946. The cubic root of 1396512 is about 111.7759124931.

The spelling of 1396512 in words is "one million, three hundred ninety-six thousand, five hundred twelve".