40812093 has 24 divisors (see below), whose sum is σ = 69870528. Its totient is φ = 23320224.

The previous prime is 40812091. The next prime is 40812119. The reversal of 40812093 is 39021804.

It is not a de Polignac number, because 40812093 - 2¹ = 40812091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40812091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10296 + ... + 13697.

It is an arithmetic number, because the mean of its divisors is an integer number (2911272).

Almost surely, 2^40812093 is an apocalyptic number.

It is an amenable number.

40812093 is a deficient number, since it is larger than the sum of its proper divisors (29058435).

40812093 is an equidigital number, since it uses as much as digits as its factorization.

40812093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24015 (or 24003 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40812093 is about 6388.4343152294. The cubic root of 40812093 is about 344.2941333482.

Adding to 40812093 its reverse (39021804), we get a palindrome (79833897).

The spelling of 40812093 in words is "forty million, eight hundred twelve thousand, ninety-three".