4140023445 has 48 divisors (see below), whose sum is σ = 7375779840. Its totient is φ = 2147015808.

The previous prime is 4140023423. The next prime is 4140023473. The reversal of 4140023445 is 5443200414.

It is a happy number.

It is not a de Polignac number, because 4140023445 - 2⁸ = 4140023189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 438444 + ... + 447786.

It is an arithmetic number, because the mean of its divisors is an integer number (153662080).

Almost surely, 2^4140023445 is an apocalyptic number.

4140023445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4140023445 is a deficient number, since it is larger than the sum of its proper divisors (3235756395).

4140023445 is a wasteful number, since it uses less digits than its factorization.

4140023445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9626 (or 9623 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4140023445 is about 64343.0139564506. The cubic root of 4140023445 is about 1605.7118046917.

Adding to 4140023445 its reverse (5443200414), we get a palindrome (9583223859).

The spelling of 4140023445 in words is "four billion, one hundred forty million, twenty-three thousand, four hundred forty-five".