405848844 has 18 divisors (see below), whose sum is σ = 1025895780. Its totient is φ = 135282936.

The previous prime is 405848827. The next prime is 405848867. The reversal of 405848844 is 448848504.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×405848844² = 329426568352272672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 405848844.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5636754 + ... + 5636825.

It is an arithmetic number, because the mean of its divisors is an integer number (56994210).

Almost surely, 2^405848844 is an apocalyptic number.

It is an amenable number.

405848844 is an abundant number, since it is smaller than the sum of its proper divisors (620046936).

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

405848844 is a wasteful number, since it uses less digits than its factorization.

405848844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11273589 (or 11273584 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 45.

The square root of 405848844 is about 20145.6904572665. The cubic root of 405848844 is about 740.3801577252.

The spelling of 405848844 in words is "four hundred five million, eight hundred forty-eight thousand, eight hundred forty-four".