405020504445 has 32 divisors (see below), whose sum is σ = 685908612480. Its totient is φ = 203511294720.

The previous prime is 405020504429. The next prime is 405020504479. The reversal of 405020504445 is 544405020504.

It is not a de Polignac number, because 405020504445 - 2⁴ = 405020504429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3874174 + ... + 3977343.

It is an arithmetic number, because the mean of its divisors is an integer number (21434644140).

Almost surely, 2^405020504445 is an apocalyptic number.

It is an amenable number.

405020504445 is a deficient number, since it is larger than the sum of its proper divisors (280888108035).

405020504445 is a wasteful number, since it uses less digits than its factorization.

405020504445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7851725.

The product of its (nonzero) digits is 64000, while the sum is 33.

Adding to 405020504445 its reverse (544405020504), we get a palindrome (949425524949).

The spelling of 405020504445 in words is "four hundred five billion, twenty million, five hundred four thousand, four hundred forty-five".