40023234 has 40 divisors (see below), whose sum is σ = 94409040. Its totient is φ = 12637944.

The previous prime is 40023229. The next prime is 40023311. The reversal of 40023234 is 43232004.

40023234 is a `hidden beast` number, since 400 + 232 + 34 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3424 + ... + 9579.

It is an arithmetic number, because the mean of its divisors is an integer number (2360226).

Almost surely, 2^40023234 is an apocalyptic number.

40023234 is an abundant number, since it is smaller than the sum of its proper divisors (54385806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40023234 is a wasteful number, since it uses less digits than its factorization.

40023234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13036 (or 13027 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40023234 is about 6326.3918626655. The cubic root of 40023234 is about 342.0613924875.

Adding to 40023234 its reverse (43232004), we get a palindrome (83255238).

The spelling of 40023234 in words is "forty million, twenty-three thousand, two hundred thirty-four".