1380478 has 16 divisors (see below), whose sum is σ = 2280960. Its totient is φ = 621400.

The previous prime is 1380469. The next prime is 1380499. The reversal of 1380478 is 8740831.

It is a happy number.

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, 2643 + ... + 3121.

It is an arithmetic number, because the mean of its divisors is an integer number (142560).

2^1380478 is an apocalyptic number.

1380478 is a deficient number, since it is larger than the sum of its proper divisors (900482).

1380478 is a wasteful number, since it uses less digits than its factorization.

1380478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623.

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

The square root of 1380478 is about 1174.9374451434. The cubic root of 1380478 is about 111.3464811306.

The spelling of 1380478 in words is "one million, three hundred eighty thousand, four hundred seventy-eight".