269995980 has 24 divisors (see below), whose sum is σ = 755988912. Its totient is φ = 71998912.

The previous prime is 269995969. The next prime is 269995981. The reversal of 269995980 is 89599962.

It is a self number, because there is not a number n which added to its sum of digits gives 269995980.

It is not an unprimeable number, because it can be changed into a prime (269995981) 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, 2249907 + ... + 2250026.

It is an arithmetic number, because the mean of its divisors is an integer number (31499538).

Almost surely, 2^269995980 is an apocalyptic number.

269995980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

269995980 is an abundant number, since it is smaller than the sum of its proper divisors (485992932).

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

269995980 is a wasteful number, since it uses less digits than its factorization.

269995980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4499945 (or 4499943 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 57.

The square root of 269995980 is about 16431.5543999952. The cubic root of 269995980 is about 646.3271992798.

The spelling of 269995980 in words is "two hundred sixty-nine million, nine hundred ninety-five thousand, nine hundred eighty".