2275640427 has 4 divisors (see below), whose sum is σ = 3034187240. Its totient is φ = 1517093616.

The previous prime is 2275640399. The next prime is 2275640429. The reversal of 2275640427 is 7240465722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2275640427 - 2¹² = 2275636331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2275640429) 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, 379273402 + ... + 379273407.

It is an arithmetic number, because the mean of its divisors is an integer number (758546810).

Almost surely, 2^2275640427 is an apocalyptic number.

2275640427 is a deficient number, since it is larger than the sum of its proper divisors (758546813).

2275640427 is an equidigital number, since it uses as much as digits as its factorization.

2275640427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758546812.

The product of its (nonzero) digits is 188160, while the sum is 39.

The square root of 2275640427 is about 47703.6730975718. The cubic root of 2275640427 is about 1315.3294585267.

The spelling of 2275640427 in words is "two billion, two hundred seventy-five million, six hundred forty thousand, four hundred twenty-seven".