4185623428 has 24 divisors (see below), whose sum is σ = 8396556224. Its totient is φ = 1788415200.

The previous prime is 4185623423. The next prime is 4185623437. The reversal of 4185623428 is 8243265814.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4185623423) 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, 216543 + ... + 235078.

Almost surely, 2^4185623428 is an apocalyptic number.

It is an amenable number.

4185623428 is an abundant number, since it is smaller than the sum of its proper divisors (4210932796).

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

4185623428 is a wasteful number, since it uses less digits than its factorization.

4185623428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451963 (or 451961 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 4185623428 is about 64696.3942426469. The cubic root of 4185623428 is about 1611.5856230374.

The spelling of 4185623428 in words is "four billion, one hundred eighty-five million, six hundred twenty-three thousand, four hundred twenty-eight".