71814428 has 24 divisors (see below), whose sum is σ = 144060000. Its totient is φ = 30685248.

The previous prime is 71814427. The next prime is 71814437. The reversal of 71814428 is 82441817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71814427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6098 + ... + 13446.

It is an arithmetic number, because the mean of its divisors is an integer number (6002500).

Almost surely, 2^71814428 is an apocalyptic number.

It is an amenable number.

71814428 is an abundant number, since it is smaller than the sum of its proper divisors (72245572).

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

71814428 is a wasteful number, since it uses less digits than its factorization.

71814428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709 (or 7707 counting only the distinct ones).

The product of its digits is 14336, while the sum is 35.

The square root of 71814428 is about 8474.3393842824. The cubic root of 71814428 is about 415.6590447775.

The spelling of 71814428 in words is "seventy-one million, eight hundred fourteen thousand, four hundred twenty-eight".