71465472 has 120 divisors (see below), whose sum is σ = 222306084. Its totient is φ = 21970944.

The previous prime is 71465437. The next prime is 71465503. The reversal of 71465472 is 27456417.

71465472 is a `hidden beast` number, since 71 + 46 + 547 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 68956416 + 2509056 = 8304^2 + 1584^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59308 + ... + 60500.

Almost surely, 2^71465472 is an apocalyptic number.

71465472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71465472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111153042).

71465472 is an abundant number, since it is smaller than the sum of its proper divisors (150840612).

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

71465472 is a wasteful number, since it uses less digits than its factorization.

71465472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1211 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 71465472 is about 8453.7253326566. The cubic root of 71465472 is about 414.9847035539.

The spelling of 71465472 in words is "seventy-one million, four hundred sixty-five thousand, four hundred seventy-two".