2445064638 has 8 divisors (see below), whose sum is σ = 4890129288. Its totient is φ = 815021544.

The previous prime is 2445064621. The next prime is 2445064639. The reversal of 2445064638 is 8364605442.

It is a sphenic number, since it is the product of 3 distinct primes.

2445064638 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2445064638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445064639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203755381 + ... + 203755392.

It is an arithmetic number, because the mean of its divisors is an integer number (611266161).

Almost surely, 2^2445064638 is an apocalyptic number.

2445064638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2445064638 is a wasteful number, since it uses less digits than its factorization.

2445064638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407510778.

The product of its (nonzero) digits is 552960, while the sum is 42.

The square root of 2445064638 is about 49447.5948656757. The cubic root of 2445064638 is about 1347.1939222868.

The spelling of 2445064638 in words is "two billion, four hundred forty-five million, sixty-four thousand, six hundred thirty-eight".