2981385 has 48 divisors (see below), whose sum is σ = 5952960. Its totient is φ = 1365120.

The previous prime is 2981383. The next prime is 2981387. The reversal of 2981385 is 5831892.

It is an interprime number because it is at equal distance from previous prime (2981383) and next prime (2981387).

It is not a de Polignac number, because 2981385 - 2¹ = 2981383 is a prime.

It is an Ulam number.

It is a Curzon number.

2981385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2981383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9247 + ... + 9563.

It is an arithmetic number, because the mean of its divisors is an integer number (124020).

2^2981385 is an apocalyptic number.

It is an amenable number.

2981385 is a deficient number, since it is larger than the sum of its proper divisors (2971575).

2981385 is a wasteful number, since it uses less digits than its factorization.

2981385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 355 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 2981385 is about 1726.6687580425. The cubic root of 2981385 is about 143.9260326141.

The spelling of 2981385 in words is "two million, nine hundred eighty-one thousand, three hundred eighty-five".