7142522420 has 48 divisors (see below), whose sum is σ = 16403083200. Its totient is φ = 2590897920.

The previous prime is 7142522417. The next prime is 7142522437. The reversal of 7142522420 is 242252417.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50291 + ... + 129669.

It is an arithmetic number, because the mean of its divisors is an integer number (341730900).

Almost surely, 2^7142522420 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 7142522420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8201541600).

7142522420 is an abundant number, since it is smaller than the sum of its proper divisors (9260560780).

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

7142522420 is a wasteful number, since it uses less digits than its factorization.

7142522420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79808 (or 79806 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 7142522420 is about 84513.4452025238. The cubic root of 7142522420 is about 1925.8267024309.

Adding to 7142522420 its reverse (242252417), we get a palindrome (7384774837).

The spelling of 7142522420 in words is "seven billion, one hundred forty-two million, five hundred twenty-two thousand, four hundred twenty".