7072040 has 32 divisors (see below), whose sum is σ = 16606080. Its totient is φ = 2705472.

The previous prime is 7072033. The next prime is 7072057. The reversal of 7072040 is 402707.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2924 + ... + 4763.

It is an arithmetic number, because the mean of its divisors is an integer number (518940).

Almost surely, 2^7072040 is an apocalyptic number.

It is an amenable number.

7072040 is an abundant number, since it is smaller than the sum of its proper divisors (9534040).

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

7072040 is a wasteful number, since it uses less digits than its factorization.

7072040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7721 (or 7717 counting only the distinct ones).

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

The square root of 7072040 is about 2659.3307428750. The cubic root of 7072040 is about 191.9471063789.

Adding to 7072040 its reverse (402707), we get a palindrome (7474747).

The spelling of 7072040 in words is "seven million, seventy-two thousand, forty".