2272431 has 8 divisors (see below), whose sum is σ = 3462784. Its totient is φ = 1298520.

The previous prime is 2272427. The next prime is 2272451. The reversal of 2272431 is 1342722.

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

It is not a de Polignac number, because 2272431 - 2² = 2272427 is a prime.

It is a super-2 number, since 2×2272431² = 10327885299522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 108211 = 2272431 / (2 + 2 + 7 + 2 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2272398 and 2272407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272451) 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, 54085 + ... + 54126.

It is an arithmetic number, because the mean of its divisors is an integer number (432848).

2^2272431 is an apocalyptic number.

2272431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2272431 is a deficient number, since it is larger than the sum of its proper divisors (1190353).

2272431 is a wasteful number, since it uses less digits than its factorization.

2272431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108221.

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

The square root of 2272431 is about 1507.4584571390. The cubic root of 2272431 is about 131.4710813632.

The spelling of 2272431 in words is "two million, two hundred seventy-two thousand, four hundred thirty-one".