405452532 has 48 divisors (see below), whose sum is σ = 963990720. Its totient is φ = 132613632.

The previous prime is 405452519. The next prime is 405452539. The reversal of 405452532 is 235254504.

It is a super-2 number, since 2×405452532² = 328783511410422048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 405452532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405452539) 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, 138508 + ... + 141404.

It is an arithmetic number, because the mean of its divisors is an integer number (20083140).

Almost surely, 2^405452532 is an apocalyptic number.

It is an amenable number.

405452532 is an abundant number, since it is smaller than the sum of its proper divisors (558538188).

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

405452532 is a wasteful number, since it uses less digits than its factorization.

405452532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120 (or 3118 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 405452532 is about 20135.8519064876. The cubic root of 405452532 is about 740.1390851303.

The spelling of 405452532 in words is "four hundred five million, four hundred fifty-two thousand, five hundred thirty-two".