405113023 has 16 divisors (see below), whose sum is σ = 468392256. Its totient is φ = 343203840.

The previous prime is 405113011. The next prime is 405113029. The reversal of 405113023 is 320311504.

It is not a de Polignac number, because 405113023 - 2⁹ = 405112511 is a prime.

It is a super-2 number, since 2×405113023² = 328233122808397058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405113029) 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, 531963 + ... + 532723.

It is an arithmetic number, because the mean of its divisors is an integer number (29274516).

Almost surely, 2^405113023 is an apocalyptic number.

405113023 is a deficient number, since it is larger than the sum of its proper divisors (63279233).

405113023 is a wasteful number, since it uses less digits than its factorization.

405113023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 405113023 is about 20127.4196806247. The cubic root of 405113023 is about 739.9324402651.

Adding to 405113023 its reverse (320311504), we get a palindrome (725424527).

It can be divided in two parts, 40511 and 3023, that added together give a palindrome (43534).

The spelling of 405113023 in words is "four hundred five million, one hundred thirteen thousand, twenty-three".