1390452 has 24 divisors (see below), whose sum is σ = 3708096. Its totient is φ = 397248.

The previous prime is 1390421. The next prime is 1390457. The reversal of 1390452 is 2540931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390457) 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, 8193 + ... + 8360.

It is an arithmetic number, because the mean of its divisors is an integer number (154504).

2^1390452 is an apocalyptic number.

1390452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1390452 is an abundant number, since it is smaller than the sum of its proper divisors (2317644).

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

1390452 is a wasteful number, since it uses less digits than its factorization.

1390452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16567 (or 16565 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1390452 is about 1179.1742873723. The cubic root of 1390452 is about 111.6139985780.

The spelling of 1390452 in words is "one million, three hundred ninety thousand, four hundred fifty-two".