40412534 has 16 divisors (see below), whose sum is σ = 61831728. Its totient is φ = 19805952.

The previous prime is 40412531. The next prime is 40412549. The reversal of 40412534 is 43521404.

40412534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40412531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21854 + ... + 23630.

It is an arithmetic number, because the mean of its divisors is an integer number (3864483).

Almost surely, 2^40412534 is an apocalyptic number.

40412534 is a deficient number, since it is larger than the sum of its proper divisors (21419194).

40412534 is a wasteful number, since it uses less digits than its factorization.

40412534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40412534 is about 6357.0853384236. The cubic root of 40412534 is about 343.1668758772.

Adding to 40412534 its reverse (43521404), we get a palindrome (83933938).

The spelling of 40412534 in words is "forty million, four hundred twelve thousand, five hundred thirty-four".