2981232 has 80 divisors (see below), whose sum is σ = 8769280. Its totient is φ = 969408.

The previous prime is 2981221. The next prime is 2981243. The reversal of 2981232 is 2321892.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2981221) and next prime (2981243).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

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

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2981196 and 2981205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28893 + ... + 28995.

It is an arithmetic number, because the mean of its divisors is an integer number (109616).

2^2981232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2981232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4384640).

2981232 is an abundant number, since it is smaller than the sum of its proper divisors (5788048).

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

2981232 is a wasteful number, since it uses less digits than its factorization.

2981232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 175 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2981232 is about 1726.6244525084. The cubic root of 2981232 is about 143.9235705526.

The spelling of 2981232 in words is "two million, nine hundred eighty-one thousand, two hundred thirty-two".