7040072 has 32 divisors (see below), whose sum is σ = 14347200. Its totient is φ = 3219264.

The previous prime is 7040063. The next prime is 7040081. The reversal of 7040072 is 2700407.

It is an interprime number because it is at equal distance from previous prime (7040063) and next prime (7040081).

It is a super-2 number, since 2×7040072² = 99125227530368, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14213 + ... + 14699.

It is an arithmetic number, because the mean of its divisors is an integer number (448350).

Almost surely, 2^7040072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7040072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7173600).

7040072 is an abundant number, since it is smaller than the sum of its proper divisors (7307128).

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

7040072 is a wasteful number, since it uses less digits than its factorization.

7040072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 7040072 is about 2653.3134002601. The cubic root of 7040072 is about 191.6574476557.

Adding to 7040072 its reverse (2700407), we get a palindrome (9740479).

The spelling of 7040072 in words is "seven million, forty thousand, seventy-two".