40012134 has 64 divisors (see below), whose sum is σ = 88473600. Its totient is φ = 12022560.

The previous prime is 40012129. The next prime is 40012139. The reversal of 40012134 is 43121004.

It is an interprime number because it is at equal distance from previous prime (40012129) and next prime (40012139).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012139) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 200967 + ... + 201165.

It is an arithmetic number, because the mean of its divisors is an integer number (1382400).

Almost surely, 2^40012134 is an apocalyptic number.

40012134 is an abundant number, since it is smaller than the sum of its proper divisors (48461466).

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

40012134 is a wasteful number, since it uses less digits than its factorization.

40012134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40012134 is about 6325.5145245268. The cubic root of 40012134 is about 342.0297672527.

Adding to 40012134 its reverse (43121004), we get a palindrome (83133138).

The spelling of 40012134 in words is "forty million, twelve thousand, one hundred thirty-four".