4245454542 has 32 divisors (see below), whose sum is σ = 9705830400. Its totient is φ = 1212745248.

The previous prime is 4245454541. The next prime is 4245454547. The reversal of 4245454542 is 2454545424.

It is a self number, because there is not a number n which added to its sum of digits gives 4245454542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245454541) 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, 391084 + ... + 401792.

It is an arithmetic number, because the mean of its divisors is an integer number (303307200).

Almost surely, 2^4245454542 is an apocalyptic number.

4245454542 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4245454542 is an abundant number, since it is smaller than the sum of its proper divisors (5460375858).

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

4245454542 is a wasteful number, since it uses less digits than its factorization.

4245454542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20160.

The product of its digits is 512000, while the sum is 39.

The square root of 4245454542 is about 65157.1526541791. The cubic root of 4245454542 is about 1619.2282232958.

Adding to 4245454542 its reverse (2454545424), we get a palindrome (6699999966).

The spelling of 4245454542 in words is "four billion, two hundred forty-five million, four hundred fifty-four thousand, five hundred forty-two".