2738281 has 8 divisors (see below), whose sum is σ = 3370304. Its totient is φ = 2166480.

The previous prime is 2738279. The next prime is 2738287. The reversal of 2738281 is 1828372.

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

It is a cyclic number.

It is not a de Polignac number, because 2738281 - 2¹ = 2738279 is a prime.

It is a super-2 number, since 2×2738281² = 14996365669922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2738287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14955 + ... + 15136.

It is an arithmetic number, because the mean of its divisors is an integer number (421288).

2^2738281 is an apocalyptic number.

It is an amenable number.

2738281 is a deficient number, since it is larger than the sum of its proper divisors (632023).

2738281 is a wasteful number, since it uses less digits than its factorization.

2738281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30111.

The product of its digits is 5376, while the sum is 31.

The square root of 2738281 is about 1654.7752113203. The cubic root of 2738281 is about 139.9026704463.

Subtracting from 2738281 its reverse (1828372), we obtain a palindrome (909909).

The spelling of 2738281 in words is "two million, seven hundred thirty-eight thousand, two hundred eighty-one".