2161452460 has 24 divisors (see below), whose sum is σ = 4558540896. Its totient is φ = 860868480.

The previous prime is 2161452427. The next prime is 2161452479. The reversal of 2161452460 is 642541612.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 227256 + ... + 236575.

It is an arithmetic number, because the mean of its divisors is an integer number (189939204).

Almost surely, 2^2161452460 is an apocalyptic number.

2161452460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2161452460 is an abundant number, since it is smaller than the sum of its proper divisors (2397088436).

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

2161452460 is a wasteful number, since it uses less digits than its factorization.

2161452460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464073 (or 464071 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2161452460 is about 46491.4235101486. The cubic root of 2161452460 is about 1292.9504926368.

The spelling of 2161452460 in words is "two billion, one hundred sixty-one million, four hundred fifty-two thousand, four hundred sixty".