40342243430 has 16 divisors (see below), whose sum is σ = 76437935280. Its totient is φ = 15287586912.

The previous prime is 40342243429. The next prime is 40342243471. The reversal of 40342243430 is 3434224304.

It is a junction number, because it is equal to n+sod(n) for n = 40342243393 and 40342243402.

It is a congruent number.

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, 106163609 + ... + 106163988.

It is an arithmetic number, because the mean of its divisors is an integer number (4777370955).

Almost surely, 2^40342243430 is an apocalyptic number.

40342243430 is a deficient number, since it is larger than the sum of its proper divisors (36095691850).

40342243430 is a wasteful number, since it uses less digits than its factorization.

40342243430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212327623.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 40342243430 its reverse (3434224304), we get a palindrome (43776467734).

The spelling of 40342243430 in words is "forty billion, three hundred forty-two million, two hundred forty-three thousand, four hundred thirty".