4253644338 has 16 divisors (see below), whose sum is σ = 8511672576. Its totient is φ = 1417150800.

The previous prime is 4253644331. The next prime is 4253644433. The reversal of 4253644338 is 8334463524.

It is a self number, because there is not a number n which added to its sum of digits gives 4253644338.

It is not an unprimeable number, because it can be changed into a prime (4253644331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169981 + ... + 193392.

It is an arithmetic number, because the mean of its divisors is an integer number (531979536).

Almost surely, 2^4253644338 is an apocalyptic number.

4253644338 is an abundant number, since it is smaller than the sum of its proper divisors (4258028238).

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

4253644338 is a wasteful number, since it uses less digits than its factorization.

4253644338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365329.

The product of its digits is 829440, while the sum is 42.

The square root of 4253644338 is about 65219.9688592382. The cubic root of 4253644338 is about 1620.2687581845.

The spelling of 4253644338 in words is "four billion, two hundred fifty-three million, six hundred forty-four thousand, three hundred thirty-eight".