4040023842 has 24 divisors (see below), whose sum is σ = 8754655260. Its totient is φ = 1346479200.

The previous prime is 4040023817. The next prime is 4040023873. The reversal of 4040023842 is 2483200404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2758455441 + 1281568401 = 52521^2 + 35799^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166884 + ... + 189552.

Almost surely, 2^4040023842 is an apocalyptic number.

4040023842 is an abundant number, since it is smaller than the sum of its proper divisors (4714631418).

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

4040023842 is a wasteful number, since it uses less digits than its factorization.

4040023842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32578 (or 32575 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 4040023842 is about 63561.1818801381. The cubic root of 4040023842 is about 1592.6779814007.

The spelling of 4040023842 in words is "four billion, forty million, twenty-three thousand, eight hundred forty-two".