2422731 has 8 divisors (see below), whose sum is σ = 3309264. Its totient is φ = 1575680.

The previous prime is 2422727. The next prime is 2422741. The reversal of 2422731 is 1372242.

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 2422731 - 2² = 2422727 is a prime.

It is a super-2 number, since 2×2422731² = 11739250996722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁹ + 4⁴ + 2¹¹ + 2¹¹ + 7⁷ + 3¹³ + 1 .

2422731 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2422698 and 2422707.

It is not an unprimeable number, because it can be changed into a prime (2422711) 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, 9726 + ... + 9971.

It is an arithmetic number, because the mean of its divisors is an integer number (413658).

2^2422731 is an apocalyptic number.

2422731 is a deficient number, since it is larger than the sum of its proper divisors (886533).

2422731 is a wasteful number, since it uses less digits than its factorization.

2422731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19741.

The product of its digits is 672, while the sum is 21.

The square root of 2422731 is about 1556.5124477498. The cubic root of 2422731 is about 134.3079536449.

Adding to 2422731 its reverse (1372242), we get a palindrome (3794973).

The spelling of 2422731 in words is "two million, four hundred twenty-two thousand, seven hundred thirty-one".