2891960 has 32 divisors (see below), whose sum is σ = 6557760. Its totient is φ = 1147776.

The previous prime is 2891929. The next prime is 2891963. The reversal of 2891960 is 691982.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2891960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891963) 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, 7697 + ... + 8063.

It is an arithmetic number, because the mean of its divisors is an integer number (204930).

2^2891960 is an apocalyptic number.

2891960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2891960 is an abundant number, since it is smaller than the sum of its proper divisors (3665800).

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

2891960 is a wasteful number, since it uses less digits than its factorization.

2891960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 2891960 is about 1700.5763728807. The cubic root of 2891960 is about 142.4724066815.

The spelling of 2891960 in words is "two million, eight hundred ninety-one thousand, nine hundred sixty".