406345530 has 64 divisors (see below), whose sum is σ = 988286976. Its totient is φ = 106920000.

The previous prime is 406345519. The next prime is 406345549. The reversal of 406345530 is 35543604.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1227465 + ... + 1227795.

It is an arithmetic number, because the mean of its divisors is an integer number (15441984).

Almost surely, 2^406345530 is an apocalyptic number.

406345530 is an abundant number, since it is smaller than the sum of its proper divisors (581941446).

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

406345530 is a wasteful number, since it uses less digits than its factorization.

406345530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 406345530 is about 20158.0140390863. The cubic root of 406345530 is about 740.6820653212.

It can be divided in two parts, 40634 and 5530, that added together give a palindrome (46164).

The spelling of 406345530 in words is "four hundred six million, three hundred forty-five thousand, five hundred thirty".