7440140572 has 6 divisors (see below), whose sum is σ = 13020246008. Its totient is φ = 3720070284.

The previous prime is 7440140551. The next prime is 7440140573. The reversal of 7440140572 is 2750410447.

It is a happy number.

It is a super-2 number, since 2×7440140572² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440140573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 930017568 + ... + 930017575.

Almost surely, 2^7440140572 is an apocalyptic number.

It is an amenable number.

7440140572 is a deficient number, since it is larger than the sum of its proper divisors (5580105436).

7440140572 is a wasteful number, since it uses less digits than its factorization.

7440140572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860035147 (or 1860035145 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 7440140572 is about 86256.2494663430. The cubic root of 7440140572 is about 1952.2123102713.

The spelling of 7440140572 in words is "seven billion, four hundred forty million, one hundred forty thousand, five hundred seventy-two".