2921266280 has 64 divisors (see below), whose sum is σ = 6816441600. Its totient is φ = 1125402880.

The previous prime is 2921266279. The next prime is 2921266303. The reversal of 2921266280 is 826621292.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497039 + ... + 502881.

It is an arithmetic number, because the mean of its divisors is an integer number (106506900).

Almost surely, 2^2921266280 is an apocalyptic number.

2921266280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2921266280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3408220800).

2921266280 is an abundant number, since it is smaller than the sum of its proper divisors (3895175320).

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

2921266280 is a wasteful number, since it uses less digits than its factorization.

2921266280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314 (or 6310 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 2921266280 is about 54048.7398558005. The cubic root of 2921266280 is about 1429.5204808179.

The spelling of 2921266280 in words is "two billion, nine hundred twenty-one million, two hundred sixty-six thousand, two hundred eighty".