2921016 has 32 divisors (see below), whose sum is σ = 8346240. Its totient is φ = 834528.

The previous prime is 2920987. The next prime is 2921027. The reversal of 2921016 is 6101292.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2920983 and 2921001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8526 + ... + 8861.

It is an arithmetic number, because the mean of its divisors is an integer number (260820).

2^2921016 is an apocalyptic number.

It is an amenable number.

2921016 is an abundant number, since it is smaller than the sum of its proper divisors (5425224).

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

2921016 is a wasteful number, since it uses less digits than its factorization.

2921016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17403 (or 17399 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2921016 is about 1709.0980077222. The cubic root of 2921016 is about 142.9479654846.

The spelling of 2921016 in words is "two million, nine hundred twenty-one thousand, sixteen".