71265420 has 60 divisors (see below), whose sum is σ = 223567344. Its totient is φ = 19003680.

The previous prime is 71265401. The next prime is 71265427. The reversal of 71265420 is 2456217.

71265420 is a `hidden beast` number, since 7 + 1 + 2 + 654 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (71265427) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20376 + ... + 23615.

Almost surely, 2^71265420 is an apocalyptic number.

It is an amenable number.

71265420 is an abundant number, since it is smaller than the sum of its proper divisors (152301924).

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

71265420 is a wasteful number, since it uses less digits than its factorization.

71265420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44012 (or 44001 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 71265420 is about 8441.8848606221. The cubic root of 71265420 is about 414.5971219597.

The spelling of 71265420 in words is "seventy-one million, two hundred sixty-five thousand, four hundred twenty".