405464113960 has 64 divisors (see below), whose sum is σ = 953720023680. Its totient is φ = 154847151360.

The previous prime is 405464113949. The next prime is 405464113969. The reversal of 405464113960 is 69311464504.

It is a super-2 number, since 2×405464113960² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (405464113969) 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, 90399 + ... + 905041.

It is an arithmetic number, because the mean of its divisors is an integer number (14901875370).

Almost surely, 2^405464113960 is an apocalyptic number.

405464113960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 405464113960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476860011840).

405464113960 is an abundant number, since it is smaller than the sum of its proper divisors (548255909720).

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

405464113960 is a wasteful number, since it uses less digits than its factorization.

405464113960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815218 (or 815214 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 405464113960 in words is "four hundred five billion, four hundred sixty-four million, one hundred thirteen thousand, nine hundred sixty".