4288538394 has 48 divisors (see below), whose sum is σ = 10622881152. Its totient is φ = 1224876384.

The previous prime is 4288538381. The next prime is 4288538399. The reversal of 4288538394 is 4938358824.

4288538394 is a `hidden beast` number, since 428 + 8 + 53 + 83 + 94 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 4288538394.

It is not an unprimeable number, because it can be changed into a prime (4288538399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 705472 + ... + 711524.

It is an arithmetic number, because the mean of its divisors is an integer number (221310024).

Almost surely, 2^4288538394 is an apocalyptic number.

4288538394 is an abundant number, since it is smaller than the sum of its proper divisors (6334342758).

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

4288538394 is a wasteful number, since it uses less digits than its factorization.

4288538394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11691 (or 11688 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 4288538394 is about 65486.9330019356. The cubic root of 4288538394 is about 1624.6872321439.

The spelling of 4288538394 in words is "four billion, two hundred eighty-eight million, five hundred thirty-eight thousand, three hundred ninety-four".