40002210 has 24 divisors (see below), whose sum is σ = 104005980. Its totient is φ = 10667232.

The previous prime is 40002199. The next prime is 40002233. The reversal of 40002210 is 1220004.

It can be written as a sum of positive squares in 2 ways, for example, as 38155329 + 1846881 = 6177^2 + 1359^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 40002192 and 40002201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222145 + ... + 222324.

Almost surely, 2^40002210 is an apocalyptic number.

40002210 is an abundant number, since it is smaller than the sum of its proper divisors (64003770).

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

40002210 is a wasteful number, since it uses less digits than its factorization.

40002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444482 (or 444479 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 40002210 is about 6324.7300337643. The cubic root of 40002210 is about 342.0014876308.

Adding to 40002210 its reverse (1220004), we get a palindrome (41222214).

The spelling of 40002210 in words is "forty million, two thousand, two hundred ten".