7017940 has 24 divisors (see below), whose sum is σ = 15605352. Its totient is φ = 2641920.

The previous prime is 7017937. The next prime is 7017947. The reversal of 7017940 is 497107.

It can be written as a sum of positive squares in 4 ways, for example, as 535824 + 6482116 = 732^2 + 2546^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7017899 and 7017908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7017947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9981 + ... + 10660.

It is an arithmetic number, because the mean of its divisors is an integer number (650223).

Almost surely, 2^7017940 is an apocalyptic number.

It is an amenable number.

7017940 is an abundant number, since it is smaller than the sum of its proper divisors (8587412).

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

7017940 is a wasteful number, since it uses less digits than its factorization.

7017940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20667 (or 20665 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 7017940 is about 2649.1394829265. The cubic root of 7017940 is about 191.4563978474.

The spelling of 7017940 in words is "seven million, seventeen thousand, nine hundred forty".