71242266 has 24 divisors (see below), whose sum is σ = 144904032. Its totient is φ = 23350800.

The previous prime is 71242261. The next prime is 71242277. The reversal of 71242266 is 66224217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71242261) 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, 20731 + ... + 23921.

It is an arithmetic number, because the mean of its divisors is an integer number (6037668).

Almost surely, 2^71242266 is an apocalyptic number.

71242266 is an abundant number, since it is smaller than the sum of its proper divisors (73661766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71242266 is a wasteful number, since it uses less digits than its factorization.

71242266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318 (or 3257 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 71242266 is about 8440.5133730123. The cubic root of 71242266 is about 414.5522164896.

The spelling of 71242266 in words is "seventy-one million, two hundred forty-two thousand, two hundred sixty-six".