405128130 has 64 divisors (see below), whose sum is σ = 1075700736. Its totient is φ = 96824000.

The previous prime is 405128123. The next prime is 405128147. The reversal of 405128130 is 31821504.

It is a self number, because there is not a number n which added to its sum of digits gives 405128130.

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, 14785 + ... + 32075.

It is an arithmetic number, because the mean of its divisors is an integer number (16807824).

Almost surely, 2^405128130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 405128130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537850368).

405128130 is an abundant number, since it is smaller than the sum of its proper divisors (670572606).

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

405128130 is a wasteful number, since it uses less digits than its factorization.

405128130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17383.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 405128130 is about 20127.7949611973. The cubic root of 405128130 is about 739.9416377152.

Adding to 405128130 its reverse (31821504), we get a palindrome (436949634).

The spelling of 405128130 in words is "four hundred five million, one hundred twenty-eight thousand, one hundred thirty".