1378460 has 24 divisors (see below), whose sum is σ = 2919840. Its totient is φ = 546624.

The previous prime is 1378441. The next prime is 1378499. The reversal of 1378460 is 648731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921 + ... + 3359.

It is an arithmetic number, because the mean of its divisors is an integer number (121660).

2^1378460 is an apocalyptic number.

1378460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378460 is an abundant number, since it is smaller than the sum of its proper divisors (1541380).

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

1378460 is a wasteful number, since it uses less digits than its factorization.

1378460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1378460 is about 1174.0783619503. The cubic root of 1378460 is about 111.2921987790.

The spelling of 1378460 in words is "one million, three hundred seventy-eight thousand, four hundred sixty".