71840722 has 16 divisors (see below), whose sum is σ = 111202560. Its totient is φ = 34789248.

The previous prime is 71840693. The next prime is 71840761. The reversal of 71840722 is 22704817.

It is a super-2 number, since 2×71840722² = 10322178674962568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5179 + ... + 13057.

It is an arithmetic number, because the mean of its divisors is an integer number (6950160).

Almost surely, 2^71840722 is an apocalyptic number.

71840722 is a deficient number, since it is larger than the sum of its proper divisors (39361838).

71840722 is a wasteful number, since it uses less digits than its factorization.

71840722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8025.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 71840722 is about 8475.8906316682. The cubic root of 71840722 is about 415.7097681285.

The spelling of 71840722 in words is "seventy-one million, eight hundred forty thousand, seven hundred twenty-two".