2981825 has 24 divisors (see below), whose sum is σ = 4612800. Its totient is φ = 1857600.

The previous prime is 2981819. The next prime is 2981827. The reversal of 2981825 is 5281892.

It is not a de Polignac number, because 2981825 - 2⁶ = 2981761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (2981827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1151 + ... + 2699.

It is an arithmetic number, because the mean of its divisors is an integer number (192200).

2^2981825 is an apocalyptic number.

2981825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2981825 is a deficient number, since it is larger than the sum of its proper divisors (1630975).

2981825 is a wasteful number, since it uses less digits than its factorization.

2981825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577 (or 1572 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The square root of 2981825 is about 1726.7961663149. The cubic root of 2981825 is about 143.9331125830.

The spelling of 2981825 in words is "two million, nine hundred eighty-one thousand, eight hundred twenty-five".