71420036 has 24 divisors (see below), whose sum is σ = 127499904. Its totient is φ = 34997760.

The previous prime is 71420023. The next prime is 71420059. The reversal of 71420036 is 63002417.

It is a junction number, because it is equal to n+sod(n) for n = 71419993 and 71420020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54161 + ... + 55463.

It is an arithmetic number, because the mean of its divisors is an integer number (5312496).

Almost surely, 2^71420036 is an apocalyptic number.

It is an amenable number.

71420036 is a deficient number, since it is larger than the sum of its proper divisors (56079868).

71420036 is a wasteful number, since it uses less digits than its factorization.

71420036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 71420036 is about 8451.0375694349. The cubic root of 71420036 is about 414.8967391995.

The spelling of 71420036 in words is "seventy-one million, four hundred twenty thousand, thirty-six".