10399455 has 64 divisors (see below), whose sum is σ = 20736000. Its totient is φ = 4901760.

The previous prime is 10399451. The next prime is 10399531. The reversal of 10399455 is 55499301.

It is not a de Polignac number, because 10399455 - 2² = 10399451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10399451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69721 + ... + 69869.

It is an arithmetic number, because the mean of its divisors is an integer number (324000).

Almost surely, 2^10399455 is an apocalyptic number.

10399455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10399455 is a deficient number, since it is larger than the sum of its proper divisors (10336545).

10399455 is a wasteful number, since it uses less digits than its factorization.

10399455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 10399455 is about 3224.8185995494. The cubic root of 10399455 is about 218.2747636666.

The spelling of 10399455 in words is "ten million, three hundred ninety-nine thousand, four hundred fifty-five".