40124238 has 96 divisors (see below), whose sum is σ = 107360640. Its totient is φ = 9858240.

The previous prime is 40124237. The next prime is 40124263. The reversal of 40124238 is 83242104.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40124237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61120 + ... + 61772.

It is an arithmetic number, because the mean of its divisors is an integer number (1118340).

Almost surely, 2^40124238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40124238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53680320).

40124238 is an abundant number, since it is smaller than the sum of its proper divisors (67236402).

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

40124238 is a wasteful number, since it uses less digits than its factorization.

40124238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 40124238 is about 6334.3695818921. The cubic root of 40124238 is about 342.3488967080.

The spelling of 40124238 in words is "forty million, one hundred twenty-four thousand, two hundred thirty-eight".