4023023391 has 12 divisors (see below), whose sum is σ = 5824522080. Its totient is φ = 2675790240.

The previous prime is 4023023377. The next prime is 4023023423. The reversal of 4023023391 is 1933203204.

It is a happy number.

4023023391 is a `hidden beast` number, since 40 + 230 + 2 + 3 + 391 = 666.

It is not a de Polignac number, because 4023023391 - 2⁵ = 4023023359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4023023341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 514686 + ... + 522443.

It is an arithmetic number, because the mean of its divisors is an integer number (485376840).

Almost surely, 2^4023023391 is an apocalyptic number.

4023023391 is a deficient number, since it is larger than the sum of its proper divisors (1801498689).

4023023391 is a wasteful number, since it uses less digits than its factorization.

4023023391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037566 (or 1037563 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 4023023391 is about 63427.3079280526. The cubic root of 4023023391 is about 1590.4408401451.

Adding to 4023023391 its reverse (1933203204), we get a palindrome (5956226595).

The spelling of 4023023391 in words is "four billion, twenty-three million, twenty-three thousand, three hundred ninety-one".