7542350440 has 64 divisors (see below), whose sum is σ = 17722229760. Its totient is φ = 2883471360.

The previous prime is 7542350411. The next prime is 7542350449. The reversal of 7542350440 is 440532457.

It is a junction number, because it is equal to n+sod(n) for n = 7542350396 and 7542350405.

It is not an unprimeable number, because it can be changed into a prime (7542350449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1558825 + ... + 1563655.

It is an arithmetic number, because the mean of its divisors is an integer number (276909840).

Almost surely, 2^7542350440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7542350440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8861114880).

7542350440 is an abundant number, since it is smaller than the sum of its proper divisors (10179879320).

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

7542350440 is a wasteful number, since it uses less digits than its factorization.

7542350440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562 (or 6558 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 34.

The square root of 7542350440 is about 86846.7065581649. The cubic root of 7542350440 is about 1961.1112711091. Note that the first 3 decimals are identical.

Adding to 7542350440 its reverse (440532457), we get a palindrome (7982882897).

The spelling of 7542350440 in words is "seven billion, five hundred forty-two million, three hundred fifty thousand, four hundred forty".