405055244 has 24 divisors (see below), whose sum is σ = 779688336. Its totient is φ = 184113600.

The previous prime is 405055201. The next prime is 405055249. The reversal of 405055244 is 442550504.

It is not an unprimeable number, because it can be changed into a prime (405055249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32717 + ... + 43364.

It is an arithmetic number, because the mean of its divisors is an integer number (32487014).

Almost surely, 2^405055244 is an apocalyptic number.

405055244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

405055244 is a deficient number, since it is larger than the sum of its proper divisors (374633092).

405055244 is a wasteful number, since it uses less digits than its factorization.

405055244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76118 (or 76094 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 405055244 is about 20125.9842989107. The cubic root of 405055244 is about 739.8972611203.

The spelling of 405055244 in words is "four hundred five million, fifty-five thousand, two hundred forty-four".