71458028 has 12 divisors (see below), whose sum is σ = 126635040. Its totient is φ = 35276592.

The previous prime is 71457977. The next prime is 71458043. The reversal of 71458028 is 82085417.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112751 + ... + 113382.

It is an arithmetic number, because the mean of its divisors is an integer number (10552920).

Almost surely, 2^71458028 is an apocalyptic number.

It is an amenable number.

71458028 is a deficient number, since it is larger than the sum of its proper divisors (55177012).

71458028 is a wasteful number, since it uses less digits than its factorization.

71458028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226216 (or 226214 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 71458028 is about 8453.2850419231. The cubic root of 71458028 is about 414.9702944819.

The spelling of 71458028 in words is "seventy-one million, four hundred fifty-eight thousand, twenty-eight".