4242400045 has 16 divisors (see below), whose sum is σ = 5489331120. Its totient is φ = 3128937984.

The previous prime is 4242399989. The next prime is 4242400073. The reversal of 4242400045 is 5400042424.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 280830564 + 3961569481 = 16758^2 + 62941^2 .

It is a cyclic number.

It is not a de Polignac number, because 4242400045 - 2²³ = 4234011437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4242399992 and 4242400019.

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, 12247 + ... + 92923.

It is an arithmetic number, because the mean of its divisors is an integer number (343083195).

Almost surely, 2^4242400045 is an apocalyptic number.

It is an amenable number.

4242400045 is a deficient number, since it is larger than the sum of its proper divisors (1246931075).

4242400045 is a wasteful number, since it uses less digits than its factorization.

4242400045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81504.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 4242400045 is about 65133.7089762283. The cubic root of 4242400045 is about 1618.8397988973.

Adding to 4242400045 its reverse (5400042424), we get a palindrome (9642442469).

The spelling of 4242400045 in words is "four billion, two hundred forty-two million, four hundred thousand, forty-five".