1379380 has 24 divisors (see below), whose sum is σ = 3067848. Its totient is φ = 519168.

The previous prime is 1379369. The next prime is 1379383. The reversal of 1379380 is 839731.

It can be written as a sum of positive squares in 4 ways, for example, as 289444 + 1089936 = 538^2 + 1044^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379383) 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, 1689 + ... + 2368.

It is an arithmetic number, because the mean of its divisors is an integer number (127827).

2^1379380 is an apocalyptic number.

1379380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1379380 is an abundant number, since it is smaller than the sum of its proper divisors (1688468).

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

1379380 is a wasteful number, since it uses less digits than its factorization.

1379380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083 (or 4081 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1379380 is about 1174.4700932761. The cubic root of 1379380 is about 111.3169525025.

The spelling of 1379380 in words is "one million, three hundred seventy-nine thousand, three hundred eighty".