71457304 has 16 divisors (see below), whose sum is σ = 134759520. Its totient is φ = 35521440.

The previous prime is 71457293. The next prime is 71457349. The reversal of 71457304 is 40375417.

It is a super-2 number, since 2×71457304² = 10212292589896832, which contains 22 as substring.

It is a congruent number.

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, 24432 + ... + 27199.

It is an arithmetic number, because the mean of its divisors is an integer number (8422470).

Almost surely, 2^71457304 is an apocalyptic number.

It is an amenable number.

71457304 is a deficient number, since it is larger than the sum of its proper divisors (63302216).

71457304 is a wasteful number, since it uses less digits than its factorization.

71457304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51810 (or 51806 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 71457304 is about 8453.2422182261. The cubic root of 71457304 is about 414.9688930088.

The spelling of 71457304 in words is "seventy-one million, four hundred fifty-seven thousand, three hundred four".