405340544122 has 4 divisors (see below), whose sum is σ = 608010816186. Its totient is φ = 202670272060.

The previous prime is 405340544107. The next prime is 405340544149. The reversal of 405340544122 is 221445043504.

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., 401716383721 + 3624160401 = 633811^2 + 60201^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101335136029 + ... + 101335136032.

Almost surely, 2^405340544122 is an apocalyptic number.

405340544122 is a deficient number, since it is larger than the sum of its proper divisors (202670272064).

405340544122 is a wasteful number, since it uses less digits than its factorization.

405340544122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202670272063.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 405340544122 its reverse (221445043504), we get a palindrome (626785587626).

The spelling of 405340544122 in words is "four hundred five billion, three hundred forty million, five hundred forty-four thousand, one hundred twenty-two".