40134042 has 160 divisors (see below), whose sum is σ = 109771200. Its totient is φ = 10824192.

The previous prime is 40134001. The next prime is 40134043. The reversal of 40134042 is 24043104.

It is a super-2 number, since 2×40134042² = 3221482654515528, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (40134043) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 680209 + ... + 680267.

It is an arithmetic number, because the mean of its divisors is an integer number (686070).

Almost surely, 2^40134042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40134042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54885600).

40134042 is an abundant number, since it is smaller than the sum of its proper divisors (69637158).

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

40134042 is a wasteful number, since it uses less digits than its factorization.

40134042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40134042 is about 6335.1434080059. The cubic root of 40134042 is about 342.3767777380.

Adding to 40134042 its reverse (24043104), we get a palindrome (64177146).

It can be divided in two parts, 401 and 34042, that added together give a palindrome (34443).

The spelling of 40134042 in words is "forty million, one hundred thirty-four thousand, forty-two".