405255452 has 72 divisors (see below), whose sum is σ = 876173088. Its totient is φ = 160588800.

The previous prime is 405255451. The next prime is 405255481. The reversal of 405255452 is 254552504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405255451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493202 + ... + 494022.

Almost surely, 2^405255452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 405255452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438086544).

405255452 is an abundant number, since it is smaller than the sum of its proper divisors (470917636).

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

405255452 is a wasteful number, since it uses less digits than its factorization.

405255452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 405255452 is about 20130.9575529829. The cubic root of 405255452 is about 740.0191448663.

The spelling of 405255452 in words is "four hundred five million, two hundred fifty-five thousand, four hundred fifty-two".