403969801 has 9 divisors (see below), whose sum is σ = 410069703. Its totient is φ = 397960200.

The previous prime is 403969799. The next prime is 403969831. The reversal of 403969801 is 108969304.

The square root of 403969801 is 20099.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 388129401 + 15840400 = 19701^2 + 3980^2 .

It is not a de Polignac number, because 403969801 - 2¹ = 403969799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403969831) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2029900 + ... + 2030098.

Almost surely, 2^403969801 is an apocalyptic number.

403969801 is the 20099-th square number.

403969801 is the 10050-th centered octagonal number.

It is an amenable number.

403969801 is a deficient number, since it is larger than the sum of its proper divisors (6099902).

403969801 is an frugal number, since it uses more digits than its factorization.

403969801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The cubic root of 403969801 is about 739.2357589624.

Multiplying 403969801 by its product of nonzero digits (46656), we get a square (18847615035456 = 4341384²).

The spelling of 403969801 in words is "four hundred three million, nine hundred sixty-nine thousand, eight hundred one".