403240202042 has 4 divisors (see below), whose sum is σ = 604860303066. Its totient is φ = 201620101020.

The previous prime is 403240201913. The next prime is 403240202059. The reversal of 403240202042 is 240202042304.

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., 402728582881 + 511619161 = 634609^2 + 22619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 403240201999 and 403240202017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100810050509 + ... + 100810050512.

Almost surely, 2^403240202042 is an apocalyptic number.

403240202042 is a deficient number, since it is larger than the sum of its proper divisors (201620101024).

403240202042 is a wasteful number, since it uses less digits than its factorization.

403240202042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201620101023.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 403240202042 its reverse (240202042304), we get a palindrome (643442244346).

The spelling of 403240202042 in words is "four hundred three billion, two hundred forty million, two hundred two thousand, forty-two".