71428360 has 16 divisors (see below), whose sum is σ = 160713900. Its totient is φ = 28571328.

The previous prime is 71428349. The next prime is 71428367. The reversal of 71428360 is 6382417.

It can be written as a sum of positive squares in 2 ways, for example, as 69255684 + 2172676 = 8322^2 + 1474^2 .

It is a super-2 number, since 2×71428360² = 10204021224579200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71428367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892815 + ... + 892894.

Almost surely, 2^71428360 is an apocalyptic number.

It is an amenable number.

71428360 is an abundant number, since it is smaller than the sum of its proper divisors (89285540).

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

71428360 is a wasteful number, since it uses less digits than its factorization.

71428360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785720 (or 1785716 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 71428360 is about 8451.5300389929. The cubic root of 71428360 is about 414.9128573016.

The spelling of 71428360 in words is "seventy-one million, four hundred twenty-eight thousand, three hundred sixty".