40109580 has 192 divisors, whose sum is σ = 145474560. Its totient is φ = 9097920.

The previous prime is 40109569. The next prime is 40109593. The reversal of 40109580 is 8590104.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 306115 + ... + 306245.

It is an arithmetic number, because the mean of its divisors is an integer number (757680).

Almost surely, 2^40109580 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 40109580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72737280).

40109580 is an abundant number, since it is smaller than the sum of its proper divisors (105364980).

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

40109580 is a wasteful number, since it uses less digits than its factorization.

40109580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 40109580 is about 6333.2124549868. The cubic root of 40109580 is about 342.3072031950.

Adding to 40109580 its reverse (8590104), we get a palindrome (48699684).

The spelling of 40109580 in words is "forty million, one hundred nine thousand, five hundred eighty".