7040280690 has 24 divisors (see below), whose sum is σ = 18304730028. Its totient is φ = 1877408160.

The previous prime is 7040280607. The next prime is 7040280707. The reversal of 7040280690 is 960820407.

It can be written as a sum of positive squares in 2 ways, for example, as 6997155201 + 43125489 = 83649^2 + 6567^2 .

It is a super-2 number, since 2×7040280690² = 99131104387973752200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39112581 + ... + 39112760.

Almost surely, 2^7040280690 is an apocalyptic number.

7040280690 is an abundant number, since it is smaller than the sum of its proper divisors (11264449338).

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

7040280690 is a wasteful number, since it uses less digits than its factorization.

7040280690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78225354 (or 78225351 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 7040280690 is about 83906.3805082784. The cubic root of 7040280690 is about 1916.5934141464.

The spelling of 7040280690 in words is "seven billion, forty million, two hundred eighty thousand, six hundred ninety".