71422506 has 32 divisors (see below), whose sum is σ = 163010880. Its totient is φ = 23163408.

The previous prime is 71422499. The next prime is 71422517. The reversal of 71422506 is 60522417.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 71422506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15876 + ... + 19871.

It is an arithmetic number, because the mean of its divisors is an integer number (5094090).

Almost surely, 2^71422506 is an apocalyptic number.

71422506 is an abundant number, since it is smaller than the sum of its proper divisors (91588374).

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

71422506 is a wasteful number, since it uses less digits than its factorization.

71422506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35795 (or 35789 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 71422506 is about 8451.1837040736. The cubic root of 71422506 is about 414.9015220924.

It can be divided in two parts, 714 and 22506, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 71422506 in words is "seventy-one million, four hundred twenty-two thousand, five hundred six".