40400240000202 has 48 divisors (see below), whose sum is σ = 89709202182600. Its totient is φ = 13132373414400.

The previous prime is 40400240000123. The next prime is 40400240000207. The reversal of 40400240000202 is 20200004200404.

40400240000202 is a `hidden beast` number, since 4 + 0 + 400 + 240 + 0 + 0 + 0 + 20 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 23994410731281 + 16405829268921 = 4898409^2 + 4050411^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40400240000207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10684827 + ... + 13963022.

Almost surely, 2^{40400240000202} is an apocalyptic number.

40400240000202 is an abundant number, since it is smaller than the sum of its proper divisors (49308962182398).

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

40400240000202 is a wasteful number, since it uses less digits than its factorization.

40400240000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24650119 (or 24650116 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 40400240000202 its reverse (20200004200404), we get a palindrome (60600244200606).

The spelling of 40400240000202 in words is "forty trillion, four hundred billion, two hundred forty million, two hundred two", and thus it is an aban number.