7500007442 has 8 divisors (see below), whose sum is σ = 11258824716. Its totient is φ = 3747065872.

The previous prime is 7500007441. The next prime is 7500007447. The reversal of 7500007442 is 2447000057.

It can be written as a sum of positive squares in 2 ways, for example, as 7325476921 + 174530521 = 85589^2 + 13211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7500007442² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7500007441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1465733 + ... + 1470840.

Almost surely, 2^7500007442 is an apocalyptic number.

7500007442 is a deficient number, since it is larger than the sum of its proper divisors (3758817274).

7500007442 is a wasteful number, since it uses less digits than its factorization.

7500007442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937852.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 7500007442 is about 86602.5833448402. The cubic root of 7500007442 is about 1957.4344680163.

Adding to 7500007442 its reverse (2447000057), we get a palindrome (9947007499).

The spelling of 7500007442 in words is "seven billion, five hundred million, seven thousand, four hundred forty-two".