1390912 has 28 divisors (see below), whose sum is σ = 2800096. Its totient is φ = 685440.

The previous prime is 1390903. The next prime is 1390913. The reversal of 1390912 is 2190931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6487 + ... + 6697.

2^1390912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400048).

1390912 is an abundant number, since it is smaller than the sum of its proper divisors (1409184).

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

1390912 is a wasteful number, since it uses less digits than its factorization.

1390912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 1390912 is about 1179.3693229858. The cubic root of 1390912 is about 111.6263055541.

The spelling of 1390912 in words is "one million, three hundred ninety thousand, nine hundred twelve".