2181280962 has 48 divisors (see below), whose sum is σ = 5238542592. Its totient is φ = 603116640.

The previous prime is 2181280949. The next prime is 2181280963. The reversal of 2181280962 is 2690821812.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2181280962.

It is not an unprimeable number, because it can be changed into a prime (2181280963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110553 + ... + 128780.

It is an arithmetic number, because the mean of its divisors is an integer number (109136304).

Almost surely, 2^2181280962 is an apocalyptic number.

2181280962 is an abundant number, since it is smaller than the sum of its proper divisors (3057261630).

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

2181280962 is a wasteful number, since it uses less digits than its factorization.

2181280962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239383 (or 239376 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 2181280962 is about 46704.1857010697. The cubic root of 2181280962 is about 1296.8921742707.

The spelling of 2181280962 in words is "two billion, one hundred eighty-one million, two hundred eighty thousand, nine hundred sixty-two".