71250404 has 6 divisors (see below), whose sum is σ = 124688214. Its totient is φ = 35625200.

The previous prime is 71250367. The next prime is 71250457. The reversal of 71250404 is 40405217.

It can be written as a sum of positive squares in only one way, i.e., 48972004 + 22278400 = 6998^2 + 4720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71250404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8906297 + ... + 8906304.

It is an arithmetic number, because the mean of its divisors is an integer number (20781369).

Almost surely, 2^71250404 is an apocalyptic number.

It is an amenable number.

71250404 is a deficient number, since it is larger than the sum of its proper divisors (53437810).

71250404 is a wasteful number, since it uses less digits than its factorization.

71250404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17812605 (or 17812603 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 71250404 is about 8440.9954389278. The cubic root of 71250404 is about 414.5680006473.

The spelling of 71250404 in words is "seventy-one million, two hundred fifty thousand, four hundred four".