403022420 has 30 divisors (see below), whose sum is σ = 859170522. Its totient is φ = 158802864.

The previous prime is 403022419. The next prime is 403022423. The reversal of 403022420 is 24220304.

It can be written as a sum of positive squares in only one way, i.e., 322417936 + 80604484 = 17956^2 + 8978^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403022423) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6015227 + ... + 6015293.

Almost surely, 2^403022420 is an apocalyptic number.

It is an amenable number.

403022420 is an abundant number, since it is smaller than the sum of its proper divisors (456148102).

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

403022420 is an frugal number, since it uses more digits than its factorization.

403022420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 403022420 is about 20075.4183019931. The cubic root of 403022420 is about 738.6574268713.

Adding to 403022420 its reverse (24220304), we get a palindrome (427242724).

The spelling of 403022420 in words is "four hundred three million, twenty-two thousand, four hundred twenty".