40042340403 has 16 divisors (see below), whose sum is σ = 58284324000. Its totient is φ = 24303884544.

The previous prime is 40042340341. The next prime is 40042340423. The reversal of 40042340403 is 30404324004.

It is a happy number.

It is not a de Polignac number, because 40042340403 - 2¹² = 40042336307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40042340423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7029528 + ... + 7035221.

It is an arithmetic number, because the mean of its divisors is an integer number (3642770250).

Almost surely, 2^40042340403 is an apocalyptic number.

40042340403 is a deficient number, since it is larger than the sum of its proper divisors (18241983597).

40042340403 is a wasteful number, since it uses less digits than its factorization.

40042340403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14064838.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 40042340403 its reverse (30404324004), we get a palindrome (70446664407).

The spelling of 40042340403 in words is "forty billion, forty-two million, three hundred forty thousand, four hundred three".