71388022 has 8 divisors (see below), whose sum is σ = 109976256. Its totient is φ = 34729272.

The previous prime is 71388019. The next prime is 71388047. The reversal of 71388022 is 22088317.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482278 + ... + 482425.

It is an arithmetic number, because the mean of its divisors is an integer number (13747032).

Almost surely, 2^71388022 is an apocalyptic number.

71388022 is a deficient number, since it is larger than the sum of its proper divisors (38588234).

71388022 is a wasteful number, since it uses less digits than its factorization.

71388022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964742.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 71388022 is about 8449.1432701783. The cubic root of 71388022 is about 414.8347375071.

The spelling of 71388022 in words is "seventy-one million, three hundred eighty-eight thousand, twenty-two".