2238651 has 8 divisors (see below), whose sum is σ = 3316560. Its totient is φ = 1492416.

The previous prime is 2238647. The next prime is 2238653. The reversal of 2238651 is 1568322.

2238651 is a `hidden beast` number, since 2 + 2 + 3 + 8 + 651 = 666.

It is not a de Polignac number, because 2238651 - 2² = 2238647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 82913 = 2238651 / (2 + 2 + 3 + 8 + 6 + 5 + 1).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2238653) 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, 41430 + ... + 41483.

It is an arithmetic number, because the mean of its divisors is an integer number (414570).

2^2238651 is an apocalyptic number.

2238651 is a deficient number, since it is larger than the sum of its proper divisors (1077909).

2238651 is an equidigital number, since it uses as much as digits as its factorization.

2238651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82922 (or 82916 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2238651 is about 1496.2122175681. The cubic root of 2238651 is about 130.8163812494.

The spelling of 2238651 in words is "two million, two hundred thirty-eight thousand, six hundred fifty-one".