405017930 has 16 divisors (see below), whose sum is σ = 733108320. Its totient is φ = 161101392.

The previous prime is 405017929. The next prime is 405017957. The reversal of 405017930 is 39710504.

It is a junction number, because it is equal to n+sod(n) for n = 405017893 and 405017902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111344 + ... + 114923.

It is an arithmetic number, because the mean of its divisors is an integer number (45819270).

Almost surely, 2^405017930 is an apocalyptic number.

405017930 is a deficient number, since it is larger than the sum of its proper divisors (328090390).

405017930 is a wasteful number, since it uses less digits than its factorization.

405017930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226453.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 405017930 is about 20125.0572669993. The cubic root of 405017930 is about 739.8745404547.

The spelling of 405017930 in words is "four hundred five million, seventeen thousand, nine hundred thirty".