405515341020 has 48 divisors (see below), whose sum is σ = 1135494491040. Its totient is φ = 108132516096.

The previous prime is 405515341003. The next prime is 405515341027. The reversal of 405515341020 is 20143515504.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405515341027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1292146 + ... + 1575014.

It is an arithmetic number, because the mean of its divisors is an integer number (23656135230).

Almost surely, 2^405515341020 is an apocalyptic number.

It is an amenable number.

405515341020 is an abundant number, since it is smaller than the sum of its proper divisors (729979150020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405515341020 is a wasteful number, since it uses less digits than its factorization.

405515341020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306774 (or 306772 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 405515341020 its reverse (20143515504), we get a palindrome (425658856524).

The spelling of 405515341020 in words is "four hundred five billion, five hundred fifteen million, three hundred forty-one thousand, twenty".