632440271 has 4 divisors (see below), whose sum is σ = 632537112. Its totient is φ = 632343432.

The previous prime is 632440261. The next prime is 632440313. The reversal of 632440271 is 172044236.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632440271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632440201) 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, 37856 + ... + 51941.

It is an arithmetic number, because the mean of its divisors is an integer number (158134278).

Almost surely, 2^632440271 is an apocalyptic number.

632440271 is a deficient number, since it is larger than the sum of its proper divisors (96841).

632440271 is an equidigital number, since it uses as much as digits as its factorization.

632440271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96840.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 632440271 is about 25148.3651754940. The cubic root of 632440271 is about 858.3673147406.

The spelling of 632440271 in words is "six hundred thirty-two million, four hundred forty thousand, two hundred seventy-one".