75440271 has 12 divisors (see below), whose sum is σ = 106853192. Its totient is φ = 47334528.

The previous prime is 75440251. The next prime is 75440273. The reversal of 75440271 is 17204457.

It is a de Polignac number, because none of the positive numbers 2^k-75440271 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75440273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42640 + ... + 44373.

Almost surely, 2^75440271 is an apocalyptic number.

75440271 is a deficient number, since it is larger than the sum of its proper divisors (31412921).

75440271 is a wasteful number, since it uses less digits than its factorization.

75440271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87050 (or 87033 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 75440271 is about 8685.6359007271. The cubic root of 75440271 is about 422.5399208337.

The spelling of 75440271 in words is "seventy-five million, four hundred forty thousand, two hundred seventy-one".