1393980 has 48 divisors (see below), whose sum is σ = 4462080. Its totient is φ = 318528.

The previous prime is 1393979. The next prime is 1393981. The reversal of 1393980 is 893931.

It is an interprime number because it is at equal distance from previous prime (1393979) and next prime (1393981).

It is a hoax number, since the sum of its digits (33) 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 (1393981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (92960).

2^1393980 is an apocalyptic number.

1393980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1393980 is an abundant number, since it is smaller than the sum of its proper divisors (3068100).

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

1393980 is a wasteful number, since it uses less digits than its factorization.

1393980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1393980 is about 1180.6693017098. The cubic root of 1393980 is about 111.7083184141.

The spelling of 1393980 in words is "one million, three hundred ninety-three thousand, nine hundred eighty".