40234032423 has 32 divisors (see below), whose sum is σ = 65095188480. Its totient is φ = 24410665440.

The previous prime is 40234032409. The next prime is 40234032431. The reversal of 40234032423 is 32423043204.

40234032423 is a `hidden beast` number, since 4 + 0 + 234 + 0 + 3 + 2 + 423 = 666.

40234032423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40234032423 - 2⁶ = 40234032359 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 (40234032023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 782311 + ... + 832152.

It is an arithmetic number, because the mean of its divisors is an integer number (2034224640).

Almost surely, 2^40234032423 is an apocalyptic number.

40234032423 is a deficient number, since it is larger than the sum of its proper divisors (24861156057).

40234032423 is a wasteful number, since it uses less digits than its factorization.

40234032423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614556 (or 1614550 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 40234032423 its reverse (32423043204), we get a palindrome (72657075627).

The spelling of 40234032423 in words is "forty billion, two hundred thirty-four million, thirty-two thousand, four hundred twenty-three".