7470272538 has 24 divisors (see below), whose sum is σ = 16212545076. Its totient is φ = 2485944000.

The previous prime is 7470272533. The next prime is 7470272581. The reversal of 7470272538 is 8352720747.

7470272538 is a `hidden beast` number, since 7 + 47 + 0 + 2 + 72 + 538 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7182054009 + 288218529 = 84747^2 + 16977^2 .

It is a super-2 number, since 2×7470272538² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7470272493 and 7470272502.

It is not an unprimeable number, because it can be changed into a prime (7470272533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 334453 + ... + 356088.

Almost surely, 2^7470272538 is an apocalyptic number.

7470272538 is an abundant number, since it is smaller than the sum of its proper divisors (8742272538).

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

7470272538 is a wasteful number, since it uses less digits than its factorization.

7470272538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691150 (or 691147 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The square root of 7470272538 is about 86430.7383862940. The cubic root of 7470272538 is about 1954.8441943410.

The spelling of 7470272538 in words is "seven billion, four hundred seventy million, two hundred seventy-two thousand, five hundred thirty-eight".