1013980 has 36 divisors (see below), whose sum is σ = 2346120. Its totient is φ = 367840.

The previous prime is 1013933. The next prime is 1013993. The reversal of 1013980 is 893101.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2211 + ... + 2629.

It is an arithmetic number, because the mean of its divisors is an integer number (65170).

2^1013980 is an apocalyptic number.

1013980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1173060).

1013980 is an abundant number, since it is smaller than the sum of its proper divisors (1332140).

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

1013980 is a wasteful number, since it uses less digits than its factorization.

1013980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1013980 is about 1006.9657392384. The cubic root of 1013980 is about 100.4638451502.

The spelling of 1013980 in words is "one million, thirteen thousand, nine hundred eighty".