403420212442 has 8 divisors (see below), whose sum is σ = 651678804756. Its totient is φ = 186193944192.

The previous prime is 403420212407. The next prime is 403420212443. The reversal of 403420212442 is 244212024304.

It can be written as a sum of positive squares in 2 ways, for example, as 371272081041 + 32148131401 = 609321^2 + 179299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 403420212442.

It is not an unprimeable number, because it can be changed into a prime (403420212443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7758080983 + ... + 7758081034.

Almost surely, 2^403420212442 is an apocalyptic number.

403420212442 is a deficient number, since it is larger than the sum of its proper divisors (248258592314).

403420212442 is a wasteful number, since it uses less digits than its factorization.

403420212442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15516162032.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 403420212442 its reverse (244212024304), we get a palindrome (647632236746).

The spelling of 403420212442 in words is "four hundred three billion, four hundred twenty million, two hundred twelve thousand, four hundred forty-two".