40243134 has 16 divisors (see below), whose sum is σ = 80776080. Its totient is φ = 13366080.

The previous prime is 40243117. The next prime is 40243163. The reversal of 40243134 is 43134204.

It is a self number, because there is not a number n which added to its sum of digits gives 40243134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10249 + ... + 13620.

It is an arithmetic number, because the mean of its divisors is an integer number (5048505).

Almost surely, 2^40243134 is an apocalyptic number.

40243134 is an abundant number, since it is smaller than the sum of its proper divisors (40532946).

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

40243134 is a wasteful number, since it uses less digits than its factorization.

40243134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24155.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40243134 is about 6343.7476305414. The cubic root of 40243134 is about 342.6867122690.

Adding to 40243134 its reverse (43134204), we get a palindrome (83377338).

The spelling of 40243134 in words is "forty million, two hundred forty-three thousand, one hundred thirty-four".