2921960 has 32 divisors (see below), whose sum is σ = 6962760. Its totient is φ = 1099776.

The previous prime is 2921957. The next prime is 2921981. The reversal of 2921960 is 691292.

2921960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2669956 + 252004 = 1634^2 + 502^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1469 + ... + 2828.

2^2921960 is an apocalyptic number.

2921960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2921960 is an abundant number, since it is smaller than the sum of its proper divisors (4040800).

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

2921960 is a wasteful number, since it uses less digits than its factorization.

2921960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325 (or 4321 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2921960 is about 1709.3741544788. The cubic root of 2921960 is about 142.9633629063.

The spelling of 2921960 in words is "two million, nine hundred twenty-one thousand, nine hundred sixty".