40512210 has 32 divisors (see below), whose sum is σ = 97396992. Its totient is φ = 10784640.

The previous prime is 40512209. The next prime is 40512229. The reversal of 40512210 is 1221504.

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 40512210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32295 + ... + 33525.

It is an arithmetic number, because the mean of its divisors is an integer number (3043656).

Almost surely, 2^40512210 is an apocalyptic number.

40512210 is an abundant number, since it is smaller than the sum of its proper divisors (56884782).

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

40512210 is a wasteful number, since it uses less digits than its factorization.

40512210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 40512210 is about 6364.9202665862. The cubic root of 40512210 is about 343.4487803130.

Adding to 40512210 its reverse (1221504), we get a palindrome (41733714).

The spelling of 40512210 in words is "forty million, five hundred twelve thousand, two hundred ten".