1378452 has 24 divisors (see below), whose sum is σ = 3235456. Its totient is φ = 456768.

The previous prime is 1378441. The next prime is 1378499. The reversal of 1378452 is 2548731.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3573 + ... + 3939.

2^1378452 is an apocalyptic number.

1378452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1378452 is an abundant number, since it is smaller than the sum of its proper divisors (1857004).

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

1378452 is a wasteful number, since it uses less digits than its factorization.

1378452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 685 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 1378452 is about 1174.0749550178. The cubic root of 1378452 is about 111.2919834810.

It can be divided in two parts, 1378 and 452, that added together give a triangular number (1830 = T₆₀).

The spelling of 1378452 in words is "one million, three hundred seventy-eight thousand, four hundred fifty-two".