403412220 has 72 divisors (see below), whose sum is σ = 1228696560. Its totient is φ = 107136000.

The previous prime is 403412213. The next prime is 403412231. The reversal of 403412220 is 22214304.

403412220 is a `hidden beast` number, since 403 + 41 + 2 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 403412193 and 403412202.

It is a congruent number.

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, 40716 + ... + 49644.

It is an arithmetic number, because the mean of its divisors is an integer number (17065230).

Almost surely, 2^403412220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403412220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614348280).

403412220 is an abundant number, since it is smaller than the sum of its proper divisors (825284340).

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

403412220 is a wasteful number, since it uses less digits than its factorization.

403412220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9195 (or 9190 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 403412220 is about 20085.1243461423. The cubic root of 403412220 is about 738.8954912842.

Adding to 403412220 its reverse (22214304), we get a palindrome (425626524).

The spelling of 403412220 in words is "four hundred three million, four hundred twelve thousand, two hundred twenty".