40406702342242 has 4 divisors (see below), whose sum is σ = 60610053513366. Its totient is φ = 20203351171120.

The previous prime is 40406702342239. The next prime is 40406702342269. The reversal of 40406702342242 is 24224320760404.

40406702342242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39321540534721 + 1085161807521 = 6270689^2 + 1041711^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40406702342195 and 40406702342204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101675585559 + ... + 10101675585562.

Almost surely, 2^{40406702342242} is an apocalyptic number.

40406702342242 is a deficient number, since it is larger than the sum of its proper divisors (20203351171124).

40406702342242 is a wasteful number, since it uses less digits than its factorization.

40406702342242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20203351171123.

The product of its (nonzero) digits is 516096, while the sum is 40.

The spelling of 40406702342242 in words is "forty trillion, four hundred six billion, seven hundred two million, three hundred forty-two thousand, two hundred forty-two".