71307460 has 48 divisors (see below), whose sum is σ = 174795264. Its totient is φ = 23925888.

The previous prime is 71307451. The next prime is 71307461. The reversal of 71307460 is 6470317.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (71307461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162 + ... + 11998.

It is an arithmetic number, because the mean of its divisors is an integer number (3641568).

Almost surely, 2^71307460 is an apocalyptic number.

71307460 is a gapful number since it is divisible by the number (70) 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 71307460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87397632).

71307460 is an abundant number, since it is smaller than the sum of its proper divisors (103487804).

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

71307460 is a wasteful number, since it uses less digits than its factorization.

71307460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10900 (or 10898 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 71307460 is about 8444.3744587743. The cubic root of 71307460 is about 414.6786305738.

Adding to 71307460 its reverse (6470317), we get a palindrome (77777777).

The spelling of 71307460 in words is "seventy-one million, three hundred seven thousand, four hundred sixty".