403399648 has 12 divisors (see below), whose sum is σ = 794193120. Its totient is φ = 201699808.

The previous prime is 403399639. The next prime is 403399669. The reversal of 403399648 is 846993304.

It is a junction number, because it is equal to n+sod(n) for n = 403399598 and 403399607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6303088 + ... + 6303151.

It is an arithmetic number, because the mean of its divisors is an integer number (66182760).

Almost surely, 2^403399648 is an apocalyptic number.

It is an amenable number.

403399648 is a deficient number, since it is larger than the sum of its proper divisors (390793472).

403399648 is a wasteful number, since it uses less digits than its factorization.

403399648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12606249 (or 12606241 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 403399648 is about 20084.8113757635. The cubic root of 403399648 is about 738.8878155205.

The spelling of 403399648 in words is "four hundred three million, three hundred ninety-nine thousand, six hundred forty-eight".