405267252 has 24 divisors (see below), whose sum is σ = 1018364256. Its totient is φ = 124697568.

The previous prime is 405267251. The next prime is 405267259. The reversal of 405267252 is 252762504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405267251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1298778 + ... + 1299089.

It is an arithmetic number, because the mean of its divisors is an integer number (42431844).

Almost surely, 2^405267252 is an apocalyptic number.

It is an amenable number.

405267252 is an abundant number, since it is smaller than the sum of its proper divisors (613097004).

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

405267252 is a wasteful number, since it uses less digits than its factorization.

405267252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597887 (or 2597885 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 405267252 is about 20131.2506317914. The cubic root of 405267252 is about 740.0263272834.

The spelling of 405267252 in words is "four hundred five million, two hundred sixty-seven thousand, two hundred fifty-two".