40008210 has 64 divisors (see below), whose sum is σ = 107339904. Its totient is φ = 9459200.

The previous prime is 40008203. The next prime is 40008217. The reversal of 40008210 is 1280004.

It is an interprime number because it is at equal distance from previous prime (40008203) and next prime (40008217).

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

It is a self number, because there is not a number n which added to its sum of digits gives 40008210.

It is not an unprimeable number, because it can be changed into a prime (40008217) 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 31 ways as a sum of consecutive naturals, for example, 12052 + ... + 15008.

It is an arithmetic number, because the mean of its divisors is an integer number (1677186).

Almost surely, 2^40008210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40008210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53669952).

40008210 is an abundant number, since it is smaller than the sum of its proper divisors (67331694).

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

40008210 is a wasteful number, since it uses less digits than its factorization.

40008210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 40008210 is about 6325.2043445252. The cubic root of 40008210 is about 342.0185859056.

Adding to 40008210 its reverse (1280004), we get a palindrome (41288214).

The spelling of 40008210 in words is "forty million, eight thousand, two hundred ten".