405043052 has 12 divisors (see below), whose sum is σ = 709103136. Its totient is φ = 202442160.

The previous prime is 405043021. The next prime is 405043069. The reversal of 405043052 is 250340504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7508 + ... + 29435.

It is an arithmetic number, because the mean of its divisors is an integer number (59091928).

Almost surely, 2^405043052 is an apocalyptic number.

It is an amenable number.

405043052 is a deficient number, since it is larger than the sum of its proper divisors (304060084).

405043052 is a wasteful number, since it uses less digits than its factorization.

405043052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39688 (or 39686 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 405043052 is about 20125.6814046134. The cubic root of 405043052 is about 739.8898375091.

Adding to 405043052 its reverse (250340504), we get a palindrome (655383556).

The spelling of 405043052 in words is "four hundred five million, forty-three thousand, fifty-two".