71268408 has 24 divisors (see below), whose sum is σ = 193018800. Its totient is φ = 23756112.

The previous prime is 71268397. The next prime is 71268427. The reversal of 71268408 is 80486217.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 494848 + ... + 494991.

It is an arithmetic number, because the mean of its divisors is an integer number (8042450).

Almost surely, 2^71268408 is an apocalyptic number.

It is an amenable number.

71268408 is an abundant number, since it is smaller than the sum of its proper divisors (121750392).

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

71268408 is a wasteful number, since it uses less digits than its factorization.

71268408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989851 (or 989844 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 71268408 is about 8442.0618334622. The cubic root of 71268408 is about 414.6029162561.

The spelling of 71268408 in words is "seventy-one million, two hundred sixty-eight thousand, four hundred eight".