403280000 has 120 divisors (see below), whose sum is σ = 1018279515. Its totient is φ = 159040000.

The previous prime is 403279993. The next prime is 403280011. The reversal of 403280000 is 82304.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 93238336 + 310041664 = 9656^2 + 17608^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5679965 + ... + 5680035.

Almost surely, 2^403280000 is an apocalyptic number.

403280000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403280000

403280000 is an abundant number, since it is smaller than the sum of its proper divisors (614999515).

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

403280000 is an frugal number, since it uses more digits than its factorization.

403280000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 403280000 is about 20081.8325856979. The cubic root of 403280000 is about 738.8147571266.

The spelling of 403280000 in words is "four hundred three million, two hundred eighty thousand".