4023031540 has 24 divisors (see below), whose sum is σ = 9216400032. Its totient is φ = 1462920480.

The previous prime is 4023031531. The next prime is 4023031601. The reversal of 4023031540 is 451303204.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9143034 + ... + 9143473.

It is an arithmetic number, because the mean of its divisors is an integer number (384016668).

Almost surely, 2^4023031540 is an apocalyptic number.

It is an amenable number.

4023031540 is an abundant number, since it is smaller than the sum of its proper divisors (5193368492).

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

4023031540 is a wasteful number, since it uses less digits than its factorization.

4023031540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18286527 (or 18286525 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 4023031540 is about 63427.3721669123. The cubic root of 4023031540 is about 1590.4419140052.

Adding to 4023031540 its reverse (451303204), we get a palindrome (4474334744).

The spelling of 4023031540 in words is "four billion, twenty-three million, thirty-one thousand, five hundred forty".