1980269260 has 24 divisors (see below), whose sum is σ = 4185059760. Its totient is φ = 787061184.

The previous prime is 1980269183. The next prime is 1980269261. The reversal of 1980269260 is 629620891.

It is not an unprimeable number, because it can be changed into a prime (1980269261) 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, 312190 + ... + 318469.

It is an arithmetic number, because the mean of its divisors is an integer number (174377490).

Almost surely, 2^1980269260 is an apocalyptic number.

1980269260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1980269260 is an abundant number, since it is smaller than the sum of its proper divisors (2204790500).

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

1980269260 is a wasteful number, since it uses less digits than its factorization.

1980269260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630825 (or 630823 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 1980269260 is about 44500.2164039682. The cubic root of 1980269260 is about 1255.7641542306.

The spelling of 1980269260 in words is "one billion, nine hundred eighty million, two hundred sixty-nine thousand, two hundred sixty".