71230472 has 16 divisors (see below), whose sum is σ = 134238060. Its totient is φ = 35433664.

The previous prime is 71230457. The next prime is 71230477. The reversal of 71230472 is 27403217.

It can be written as a sum of positive squares in 2 ways, for example, as 49084036 + 22146436 = 7006^2 + 4706^2 .

It is not an unprimeable number, because it can be changed into a prime (71230477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21023 + ... + 24174.

Almost surely, 2^71230472 is an apocalyptic number.

It is an amenable number.

71230472 is a deficient number, since it is larger than the sum of its proper divisors (63007588).

71230472 is a wasteful number, since it uses less digits than its factorization.

71230472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45400 (or 45396 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 71230472 is about 8439.8146899088. The cubic root of 71230472 is about 414.5293391587.

Adding to 71230472 its reverse (27403217), we get a palindrome (98633689).

The spelling of 71230472 in words is "seventy-one million, two hundred thirty thousand, four hundred seventy-two".