40505124 has 24 divisors (see below), whose sum is σ = 103104288. Its totient is φ = 12274240.

The previous prime is 40505123. The next prime is 40505137. The reversal of 40505124 is 42150504.

It is a self number, because there is not a number n which added to its sum of digits gives 40505124.

It is not an unprimeable number, because it can be changed into a prime (40505123) 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 7 ways as a sum of consecutive naturals, for example, 153297 + ... + 153560.

It is an arithmetic number, because the mean of its divisors is an integer number (4296012).

Almost surely, 2^40505124 is an apocalyptic number.

40505124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40505124 is an abundant number, since it is smaller than the sum of its proper divisors (62599164).

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

40505124 is a wasteful number, since it uses less digits than its factorization.

40505124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306875 (or 306873 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40505124 is about 6364.3635974070. The cubic root of 40505124 is about 343.4287549103.

Adding to 40505124 its reverse (42150504), we get a palindrome (82655628).

The spelling of 40505124 in words is "forty million, five hundred five thousand, one hundred twenty-four".