40194124240 has 20 divisors (see below), whose sum is σ = 93451339044. Its totient is φ = 16077649664.

The previous prime is 40194124211. The next prime is 40194124249. The reversal of 40194124240 is 4242149104.

It can be written as a sum of positive squares in 2 ways, for example, as 8690714176 + 31503410064 = 93224^2 + 177492^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40194124249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251213197 + ... + 251213356.

Almost surely, 2^40194124240 is an apocalyptic number.

40194124240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40194124240 is an abundant number, since it is smaller than the sum of its proper divisors (53257214804).

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

40194124240 is a wasteful number, since it uses less digits than its factorization.

40194124240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502426566 (or 502426560 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 40194124240 in words is "forty billion, one hundred ninety-four million, one hundred twenty-four thousand, two hundred forty".