405302030 has 24 divisors (see below), whose sum is σ = 848653848. Its totient is φ = 138960528.

The previous prime is 405301997. The next prime is 405302039. The reversal of 405302030 is 30203504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405302039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413084 + ... + 414063.

It is an arithmetic number, because the mean of its divisors is an integer number (35360577).

Almost surely, 2^405302030 is an apocalyptic number.

405302030 is an abundant number, since it is smaller than the sum of its proper divisors (443351818).

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

405302030 is a wasteful number, since it uses less digits than its factorization.

405302030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827168 (or 827161 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 405302030 is about 20132.1143946680. The cubic root of 405302030 is about 740.0474951254.

Adding to 405302030 its reverse (30203504), we get a palindrome (435505534).

The spelling of 405302030 in words is "four hundred five million, three hundred two thousand, thirty".