40013210 has 16 divisors (see below), whose sum is σ = 73245600. Its totient is φ = 15733776.

The previous prime is 40013201. The next prime is 40013227. The reversal of 40013210 is 1231004.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40013191 and 40013200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33320 + ... + 34499.

It is an arithmetic number, because the mean of its divisors is an integer number (4577850).

Almost surely, 2^40013210 is an apocalyptic number.

40013210 is a deficient number, since it is larger than the sum of its proper divisors (33232390).

40013210 is a wasteful number, since it uses less digits than its factorization.

40013210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67885.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40013210 is about 6325.5995763248. The cubic root of 40013210 is about 342.0328331621.

Adding to 40013210 its reverse (1231004), we get a palindrome (41244214).

The spelling of 40013210 in words is "forty million, thirteen thousand, two hundred ten".