2445664542 has 64 divisors (see below), whose sum is σ = 5095379520. Its totient is φ = 782106624.

The previous prime is 2445664513. The next prime is 2445664549. The reversal of 2445664542 is 2454665442.

It is a junction number, because it is equal to n+sod(n) for n = 2445664494 and 2445664503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445664549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3179934 + ... + 3180702.

It is an arithmetic number, because the mean of its divisors is an integer number (79615305).

Almost surely, 2^2445664542 is an apocalyptic number.

2445664542 is an abundant number, since it is smaller than the sum of its proper divisors (2649714978).

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

2445664542 is a wasteful number, since it uses less digits than its factorization.

2445664542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037.

The product of its digits is 921600, while the sum is 42.

The square root of 2445664542 is about 49453.6605520764. The cubic root of 2445664542 is about 1347.3040926442.

The spelling of 2445664542 in words is "two billion, four hundred forty-five million, six hundred sixty-four thousand, five hundred forty-two".