1390468 has 12 divisors (see below), whose sum is σ = 2450700. Its totient is φ = 690272.

The previous prime is 1390457. The next prime is 1390469. The reversal of 1390468 is 8640931.

It can be written as a sum of positive squares in 2 ways, for example, as 304704 + 1085764 = 552^2 + 1042^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390469) 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, 571 + ... + 1762.

It is an arithmetic number, because the mean of its divisors is an integer number (204225).

2^1390468 is an apocalyptic number.

It is an amenable number.

1390468 is a deficient number, since it is larger than the sum of its proper divisors (1060232).

1390468 is a wasteful number, since it uses less digits than its factorization.

1390468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486 (or 2484 counting only the distinct ones).

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

The square root of 1390468 is about 1179.1810717612. The cubic root of 1390468 is about 111.6144266923.

The spelling of 1390468 in words is "one million, three hundred ninety thousand, four hundred sixty-eight".