403400520030 has 32 divisors (see below), whose sum is σ = 969625987488. Its totient is φ = 107410723200.

The previous prime is 403400519999. The next prime is 403400520041. The reversal of 403400520030 is 30025004304.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 403400519979 and 403400520006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10151641 + ... + 10191300.

It is an arithmetic number, because the mean of its divisors is an integer number (30300812109).

Almost surely, 2^403400520030 is an apocalyptic number.

403400520030 is an abundant number, since it is smaller than the sum of its proper divisors (566225467458).

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

403400520030 is a wasteful number, since it uses less digits than its factorization.

403400520030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20343612.

The product of its (nonzero) digits is 1440, while the sum is 21.

Adding to 403400520030 its reverse (30025004304), we get a palindrome (433425524334).

The spelling of 403400520030 in words is "four hundred three billion, four hundred million, five hundred twenty thousand, thirty".