2981836 has 36 divisors (see below), whose sum is σ = 6179544. Its totient is φ = 1248000.

The previous prime is 2981827. The next prime is 2981837. The reversal of 2981836 is 6381892.

2981836 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 = 2981795 and 2981804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7236 + ... + 7636.

It is an arithmetic number, because the mean of its divisors is an integer number (171654).

2^2981836 is an apocalyptic number.

2981836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2981836 is an abundant number, since it is smaller than the sum of its proper divisors (3197708).

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

2981836 is a wasteful number, since it uses less digits than its factorization.

2981836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 427 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 2981836 is about 1726.7993514013. The cubic root of 2981836 is about 143.9332895733.

The spelling of 2981836 in words is "two million, nine hundred eighty-one thousand, eight hundred thirty-six".