40212064210 has 16 divisors (see below), whose sum is σ = 72388497816. Its totient is φ = 16083318528.

The previous prime is 40212064181. The next prime is 40212064213. The reversal of 40212064210 is 1246021204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26025110329 + 14186953881 = 161323^2 + 119109^2 .

It is not an unprimeable number, because it can be changed into a prime (40212064213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72969 + ... + 292828.

Almost surely, 2^40212064210 is an apocalyptic number.

40212064210 is a deficient number, since it is larger than the sum of its proper divisors (32176433606).

40212064210 is a wasteful number, since it uses less digits than its factorization.

40212064210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376797.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40212064210 its reverse (1246021204), we get a palindrome (41458085414).

The spelling of 40212064210 in words is "forty billion, two hundred twelve million, sixty-four thousand, two hundred ten".