405631085342 has 16 divisors (see below), whose sum is σ = 695376557952. Its totient is φ = 173839647960.

The previous prime is 405631085261. The next prime is 405631085347. The reversal of 405631085342 is 243580136504.

It is a self number, because there is not a number n which added to its sum of digits gives 405631085342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405631085347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398617 + ... + 1663547.

It is an arithmetic number, because the mean of its divisors is an integer number (43461034872).

Almost surely, 2^405631085342 is an apocalyptic number.

405631085342 is a deficient number, since it is larger than the sum of its proper divisors (289745472610).

405631085342 is a wasteful number, since it uses less digits than its factorization.

405631085342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374303.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 405631085342 in words is "four hundred five billion, six hundred thirty-one million, eighty-five thousand, three hundred forty-two".