400530606 has 24 divisors (see below), whose sum is σ = 931847400. Its totient is φ = 114437232.

The previous prime is 400530601. The next prime is 400530607. The reversal of 400530606 is 606035004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400530601) 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, 680881 + ... + 681468.

It is an arithmetic number, because the mean of its divisors is an integer number (38826975).

Almost surely, 2^400530606 is an apocalyptic number.

400530606 is an abundant number, since it is smaller than the sum of its proper divisors (531316794).

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

400530606 is a wasteful number, since it uses less digits than its factorization.

400530606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362368 (or 1362361 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 400530606 is about 20013.2607538102. The cubic root of 400530606 is about 737.1319506464.

The spelling of 400530606 in words is "four hundred million, five hundred thirty thousand, six hundred six".