4040400039 has 16 divisors (see below), whose sum is σ = 5911067232. Its totient is φ = 2439485568.

The previous prime is 4040400019. The next prime is 4040400059. The reversal of 4040400039 is 9300040404.

It is an interprime number because it is at equal distance from previous prime (4040400019) and next prime (4040400059).

It is not a de Polignac number, because 4040400039 - 2²¹ = 4038302887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4040399991 and 4040400018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040400019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975292 + ... + 979425.

It is an arithmetic number, because the mean of its divisors is an integer number (369441702).

Almost surely, 2^4040400039 is an apocalyptic number.

4040400039 is a deficient number, since it is larger than the sum of its proper divisors (1870667193).

4040400039 is a wasteful number, since it uses less digits than its factorization.

4040400039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954786.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 4040400039 is about 63564.1411410553. The cubic root of 4040400039 is about 1592.7274152741.

The spelling of 4040400039 in words is "four billion, forty million, four hundred thousand, thirty-nine".