2981386 has 8 divisors (see below), whose sum is σ = 4593060. Its totient is φ = 1450368.

The previous prime is 2981383. The next prime is 2981387. The reversal of 2981386 is 6831892.

It can be written as a sum of positive squares in 2 ways, for example, as 2205225 + 776161 = 1485^2 + 881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 20071 + ... + 20218.

2^2981386 is an apocalyptic number.

2981386 is a deficient number, since it is larger than the sum of its proper divisors (1611674).

2981386 is a wasteful number, since it uses less digits than its factorization.

2981386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40328.

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

The square root of 2981386 is about 1726.6690476174. The cubic root of 2981386 is about 143.9260487057.

The spelling of 2981386 in words is "two million, nine hundred eighty-one thousand, three hundred eighty-six".