400530442030 has 16 divisors (see below), whose sum is σ = 720978853824. Its totient is φ = 160206830560.

The previous prime is 400530442027. The next prime is 400530442031. The reversal of 400530442030 is 30244035004.

It is a junction number, because it is equal to n+sod(n) for n = 400530441986 and 400530442004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400530442031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346237 + ... + 959656.

It is an arithmetic number, because the mean of its divisors is an integer number (45061178364).

Almost surely, 2^400530442030 is an apocalyptic number.

400530442030 is a deficient number, since it is larger than the sum of its proper divisors (320448411794).

400530442030 is a wasteful number, since it uses less digits than its factorization.

400530442030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336571.

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 400530442030 its reverse (30244035004), we get a palindrome (430774477034).

The spelling of 400530442030 in words is "four hundred billion, five hundred thirty million, four hundred forty-two thousand, thirty".