40134512 has 40 divisors (see below), whose sum is σ = 85411200. Its totient is φ = 18118080.

The previous prime is 40134511. The next prime is 40134527. The reversal of 40134512 is 21543104.

It is a super-2 number, since 2×40134512² = 3221558106956288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40134511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27989 + ... + 29387.

It is an arithmetic number, because the mean of its divisors is an integer number (2135280).

Almost surely, 2^40134512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40134512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42705600).

40134512 is an abundant number, since it is smaller than the sum of its proper divisors (45276688).

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

40134512 is a wasteful number, since it uses less digits than its factorization.

40134512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 40134512 is about 6335.1805025587. The cubic root of 40134512 is about 342.3781142298.

Adding to 40134512 its reverse (21543104), we get a palindrome (61677616).

The spelling of 40134512 in words is "forty million, one hundred thirty-four thousand, five hundred twelve".