40505010 has 128 divisors (see below), whose sum is σ = 123185664. Its totient is φ = 8294400.

The previous prime is 40504993. The next prime is 40505021. The reversal of 40505010 is 1050504.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 100810 + ... + 101210.

It is an arithmetic number, because the mean of its divisors is an integer number (962388).

Almost surely, 2^40505010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40505010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61592832).

40505010 is an abundant number, since it is smaller than the sum of its proper divisors (82680654).

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

40505010 is a wasteful number, since it uses less digits than its factorization.

40505010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 40505010 is about 6364.3546412814. The cubic root of 40505010 is about 343.4284327213.

Adding to 40505010 its reverse (1050504), we get a palindrome (41555514).

The spelling of 40505010 in words is "forty million, five hundred five thousand, ten".