40340143224242 has 16 divisors (see below), whose sum is σ = 64069822191960. Its totient is φ = 18983542603008.

The previous prime is 40340143224229. The next prime is 40340143224281. The reversal of 40340143224242 is 24242234104304.

It can be written as a sum of positive squares in 4 ways, for example, as 39074763462361 + 1265379761881 = 6250981^2 + 1124891^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11989688 + ... + 14981084.

Almost surely, 2^{40340143224242} is an apocalyptic number.

40340143224242 is a deficient number, since it is larger than the sum of its proper divisors (23729678967718).

40340143224242 is a wasteful number, since it uses less digits than its factorization.

40340143224242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388045.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 40340143224242 its reverse (24242234104304), we get a palindrome (64582377328546).

The spelling of 40340143224242 in words is "forty trillion, three hundred forty billion, one hundred forty-three million, two hundred twenty-four thousand, two hundred forty-two".