405655050 has 48 divisors (see below), whose sum is σ = 1033228512. Its totient is φ = 105249600.

The previous prime is 405655049. The next prime is 405655069. The reversal of 405655050 is 50556504.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 405654999 and 405655017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30996 + ... + 42095.

It is an arithmetic number, because the mean of its divisors is an integer number (21525594).

Almost surely, 2^405655050 is an apocalyptic number.

405655050 is an abundant number, since it is smaller than the sum of its proper divisors (627573462).

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

405655050 is a wasteful number, since it uses less digits than its factorization.

405655050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73143 (or 73138 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 405655050 is about 20140.8800701459. The cubic root of 405655050 is about 740.2622944057.

The spelling of 405655050 in words is "four hundred five million, six hundred fifty-five thousand, fifty".