1393380 has 36 divisors (see below), whose sum is σ = 4227132. Its totient is φ = 371520.

The previous prime is 1393373. The next prime is 1393387. The reversal of 1393380 is 833931.

It is an interprime number because it is at equal distance from previous prime (1393373) and next prime (1393387).

It can be written as a sum of positive squares in 2 ways, for example, as 389376 + 1004004 = 624^2 + 1002^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1393387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3691 + ... + 4050.

2^1393380 is an apocalyptic number.

1393380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1393380 is an abundant number, since it is smaller than the sum of its proper divisors (2833752).

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

1393380 is a wasteful number, since it uses less digits than its factorization.

1393380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7756 (or 7751 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 1393380 is about 1180.4151811969. The cubic root of 1393380 is about 111.6922888657.

The spelling of 1393380 in words is "one million, three hundred ninety-three thousand, three hundred eighty".