40034140 has 48 divisors (see below), whose sum is σ = 89258400. Its totient is φ = 15040512.

The previous prime is 40034129. The next prime is 40034179. The reversal of 40034140 is 4143004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51676 + ... + 52444.

It is an arithmetic number, because the mean of its divisors is an integer number (1859550).

Almost surely, 2^40034140 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 40034140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44629200).

40034140 is an abundant number, since it is smaller than the sum of its proper divisors (49224260).

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

40034140 is a wasteful number, since it uses less digits than its factorization.

40034140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40034140 is about 6327.2537486654. The cubic root of 40034140 is about 342.0924592986.

Adding to 40034140 its reverse (4143004), we get a palindrome (44177144).

The spelling of 40034140 in words is "forty million, thirty-four thousand, one hundred forty".