405252331436 has 24 divisors (see below), whose sum is σ = 719302945536. Its totient is φ = 199738178640.

The previous prime is 405252331433. The next prime is 405252331459. The reversal of 405252331436 is 634133252504.

It is a self number, because there is not a number n which added to its sum of digits gives 405252331436.

It is not an unprimeable number, because it can be changed into a prime (405252331433) 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, 1587215 + ... + 1824761.

It is an arithmetic number, because the mean of its divisors is an integer number (29970956064).

Almost surely, 2^405252331436 is an apocalyptic number.

It is an amenable number.

405252331436 is a deficient number, since it is larger than the sum of its proper divisors (314050614100).

405252331436 is a wasteful number, since it uses less digits than its factorization.

405252331436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243629 (or 243627 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 405252331436 in words is "four hundred five billion, two hundred fifty-two million, three hundred thirty-one thousand, four hundred thirty-six".