403947496 has 16 divisors (see below), whose sum is σ = 783519300. Its totient is φ = 195009024.

The previous prime is 403947491. The next prime is 403947497. The reversal of 403947496 is 694749304.

It can be written as a sum of positive squares in 2 ways, for example, as 385336900 + 18610596 = 19630^2 + 4314^2 .

It is not an unprimeable number, because it can be changed into a prime (403947491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870345 + ... + 870808.

Almost surely, 2^403947496 is an apocalyptic number.

It is an amenable number.

403947496 is a deficient number, since it is larger than the sum of its proper divisors (379571804).

403947496 is a wasteful number, since it uses less digits than its factorization.

403947496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741188 (or 1741184 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 403947496 is about 20098.4451139883. The cubic root of 403947496 is about 739.2221531953. Note that the first 3 decimals are identical.

The spelling of 403947496 in words is "four hundred three million, nine hundred forty-seven thousand, four hundred ninety-six".