71024072 has 16 divisors (see below), whose sum is σ = 152194560. Its totient is φ = 30438864.

The previous prime is 71024039. The next prime is 71024101. The reversal of 71024072 is 27042017.

It is a super-2 number, since 2×71024072² = 10088837606922368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634088 + ... + 634199.

It is an arithmetic number, because the mean of its divisors is an integer number (9512160).

Almost surely, 2^71024072 is an apocalyptic number.

It is an amenable number.

71024072 is an abundant number, since it is smaller than the sum of its proper divisors (81170488).

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

71024072 is a wasteful number, since it uses less digits than its factorization.

71024072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268300 (or 1268296 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 71024072 is about 8427.5780625278. The cubic root of 71024072 is about 414.1285667273.

Adding to 71024072 its reverse (27042017), we get a palindrome (98066089).

The spelling of 71024072 in words is "seventy-one million, twenty-four thousand, seventy-two".