1958980 has 24 divisors (see below), whose sum is σ = 4215960. Its totient is φ = 764160.

The previous prime is 1958959. The next prime is 1958993. The reversal of 1958980 is 898591.

It can be written as a sum of positive squares in 4 ways, for example, as 21316 + 1937664 = 146^2 + 1392^2 .

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, 375 + ... + 2014.

It is an arithmetic number, because the mean of its divisors is an integer number (175665).

2^1958980 is an apocalyptic number.

1958980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1958980 is an abundant number, since it is smaller than the sum of its proper divisors (2256980).

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

1958980 is a wasteful number, since it uses less digits than its factorization.

1958980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2437 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 1958980 is about 1399.6356668791. The cubic root of 1958980 is about 125.1247820607.

The spelling of 1958980 in words is "one million, nine hundred fifty-eight thousand, nine hundred eighty".