403340342232420 has 72 divisors (see below), whose sum is σ = 1295434275650424. Its totient is φ = 101230517265408.

The previous prime is 403340342232389. The next prime is 403340342232431. The reversal of 403340342232420 is 24232243043304.

403340342232420 is a `hidden beast` number, since 4 + 0 + 3 + 3 + 4 + 0 + 3 + 4 + 223 + 2 + 420 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 138168364286016 + 265171977946404 = 11754504^2 + 16284102^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65905281619 + ... + 65905287738.

It is an arithmetic number, because the mean of its divisors is an integer number (17992142717367).

Almost surely, 2^{403340342232420} is an apocalyptic number.

It is an amenable number.

403340342232420 is an abundant number, since it is smaller than the sum of its proper divisors (892093933418004).

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

403340342232420 is a wasteful number, since it uses less digits than its factorization.

403340342232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131810569389 (or 131810569384 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 36.

Adding to 403340342232420 its reverse (24232243043304), we get a palindrome (427572585275724).

The spelling of 403340342232420 in words is "four hundred three trillion, three hundred forty billion, three hundred forty-two million, two hundred thirty-two thousand, four hundred twenty".