71454642 has 48 divisors (see below), whose sum is σ = 166950720. Its totient is φ = 20328672.

The previous prime is 71454619. The next prime is 71454667. The reversal of 71454642 is 24645417.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105208 + ... + 105884.

It is an arithmetic number, because the mean of its divisors is an integer number (3478140).

Almost surely, 2^71454642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71454642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83475360).

71454642 is an abundant number, since it is smaller than the sum of its proper divisors (95496078).

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

71454642 is a wasteful number, since it uses less digits than its factorization.

71454642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1048 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 71454642 is about 8453.0847623811. The cubic root of 71454642 is about 414.9637399974.

The spelling of 71454642 in words is "seventy-one million, four hundred fifty-four thousand, six hundred forty-two".