7040628531 has 6 divisors (see below), whose sum is σ = 10169796780. Its totient is φ = 4693752348.

The previous prime is 7040628499. The next prime is 7040628541. The reversal of 7040628531 is 1358260407.

It is not a de Polignac number, because 7040628531 - 2⁵ = 7040628499 is a prime.

It is a super-2 number, since 2×7040628531² = 99140900223062435922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7040628541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 391146021 + ... + 391146038.

It is an arithmetic number, because the mean of its divisors is an integer number (1694966130).

Almost surely, 2^7040628531 is an apocalyptic number.

7040628531 is a deficient number, since it is larger than the sum of its proper divisors (3129168249).

7040628531 is a wasteful number, since it uses less digits than its factorization.

7040628531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782292065 (or 782292062 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 7040628531 is about 83908.4532749830. The cubic root of 7040628531 is about 1916.6249781716.

Adding to 7040628531 its reverse (1358260407), we get a palindrome (8398888938).

The spelling of 7040628531 in words is "seven billion, forty million, six hundred twenty-eight thousand, five hundred thirty-one".