71174420 has 24 divisors (see below), whose sum is σ = 155965824. Its totient is φ = 27231776.

The previous prime is 71174413. The next prime is 71174459. The reversal of 71174420 is 2447117.

It is a self number, because there is not a number n which added to its sum of digits gives 71174420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76904 + ... + 77823.

It is an arithmetic number, because the mean of its divisors is an integer number (6498576).

Almost surely, 2^71174420 is an apocalyptic number.

It is an amenable number.

71174420 is an abundant number, since it is smaller than the sum of its proper divisors (84791404).

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

71174420 is a wasteful number, since it uses less digits than its factorization.

71174420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154759 (or 154757 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 71174420 is about 8436.4933473571. The cubic root of 71174420 is about 414.4205781411.

The spelling of 71174420 in words is "seventy-one million, one hundred seventy-four thousand, four hundred twenty".