403272020 has 24 divisors (see below), whose sum is σ = 847615104. Its totient is φ = 161167136.

The previous prime is 403272013. The next prime is 403272029. The reversal of 403272020 is 20272304.

It is a happy number.

It is a super-2 number, since 2×403272020² = 325256644229760800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 403271983 and 403272001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403272029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16217 + ... + 32703.

It is an arithmetic number, because the mean of its divisors is an integer number (35317296).

Almost surely, 2^403272020 is an apocalyptic number.

It is an amenable number.

403272020 is an abundant number, since it is smaller than the sum of its proper divisors (444343084).

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

403272020 is a wasteful number, since it uses less digits than its factorization.

403272020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17719 (or 17717 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 403272020 is about 20081.6338976688. The cubic root of 403272020 is about 738.8098839362.

The spelling of 403272020 in words is "four hundred three million, two hundred seventy-two thousand, twenty".