1378480 has 20 divisors (see below), whose sum is σ = 3205152. Its totient is φ = 551360.

The previous prime is 1378441. The next prime is 1378499. The reversal of 1378480 is 848731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1378480² = 3800414220800, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 8536 + ... + 8695.

2^1378480 is an apocalyptic number.

1378480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378480 is an abundant number, since it is smaller than the sum of its proper divisors (1826672).

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

1378480 is a wasteful number, since it uses less digits than its factorization.

1378480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17244 (or 17238 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1378480 is about 1174.0868792385. The cubic root of 1378480 is about 111.2927370206.

The spelling of 1378480 in words is "one million, three hundred seventy-eight thousand, four hundred eighty".