405053430 has 64 divisors (see below), whose sum is σ = 1008566208. Its totient is φ = 104025600.

The previous prime is 405053357. The next prime is 405053431. The reversal of 405053430 is 34350504.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 405053430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405053431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110304 + ... + 113916.

It is an arithmetic number, because the mean of its divisors is an integer number (15758847).

Almost surely, 2^405053430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 405053430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504283104).

405053430 is an abundant number, since it is smaller than the sum of its proper divisors (603512778).

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

405053430 is a wasteful number, since it uses less digits than its factorization.

405053430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 405053430 is about 20125.9392327414. The cubic root of 405053430 is about 739.8961565996.

The spelling of 405053430 in words is "four hundred five million, fifty-three thousand, four hundred thirty".