403232020 has 12 divisors (see below), whose sum is σ = 846787284. Its totient is φ = 161292800.

The previous prime is 403232009. The next prime is 403232029. The reversal of 403232020 is 20232304.

It can be written as a sum of positive squares in 2 ways, for example, as 54140164 + 349091856 = 7358^2 + 18684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 403231985 and 403232003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403232029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10080781 + ... + 10080820.

It is an arithmetic number, because the mean of its divisors is an integer number (70565607).

Almost surely, 2^403232020 is an apocalyptic number.

It is an amenable number.

403232020 is an abundant number, since it is smaller than the sum of its proper divisors (443555264).

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

403232020 is a wasteful number, since it uses less digits than its factorization.

403232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20161610 (or 20161608 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 403232020 is about 20080.6379380736. The cubic root of 403232020 is about 738.7854559479.

Adding to 403232020 its reverse (20232304), we get a palindrome (423464324).

The spelling of 403232020 in words is "four hundred three million, two hundred thirty-two thousand, twenty".