40108500 has 96 divisors (see below), whose sum is σ = 129816960. Its totient is φ = 10692000.

The previous prime is 40108499. The next prime is 40108501. The reversal of 40108500 is 580104.

It is an interprime number because it is at equal distance from previous prime (40108499) and next prime (40108501).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40108501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12015 + ... + 14985.

It is an arithmetic number, because the mean of its divisors is an integer number (1352260).

Almost surely, 2^40108500 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 40108500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64908480).

40108500 is an abundant number, since it is smaller than the sum of its proper divisors (89708460).

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

40108500 is a wasteful number, since it uses less digits than its factorization.

40108500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999 (or 2981 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 40108500 is about 6333.1271896276. The cubic root of 40108500 is about 342.3041308193.

Adding to 40108500 its reverse (580104), we get a palindrome (40688604).

The spelling of 40108500 in words is "forty million, one hundred eight thousand, five hundred".