40240442442 has 64 divisors (see below), whose sum is σ = 84495882240. Its totient is φ = 12751742784.

The previous prime is 40240442413. The next prime is 40240442477. The reversal of 40240442442 is 24424404204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17749393 + ... + 17751659.

It is an arithmetic number, because the mean of its divisors is an integer number (1320248160).

Almost surely, 2^40240442442 is an apocalyptic number.

40240442442 is an abundant number, since it is smaller than the sum of its proper divisors (44255439798).

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

40240442442 is a wasteful number, since it uses less digits than its factorization.

40240442442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 40240442442 its reverse (24424404204), we get a palindrome (64664846646).

The spelling of 40240442442 in words is "forty billion, two hundred forty million, four hundred forty-two thousand, four hundred forty-two".