10409399 has 16 divisors (see below), whose sum is σ = 13977600. Its totient is φ = 7486560.

The previous prime is 10409393. The next prime is 10409401. The reversal of 10409399 is 99390401.

10409399 = T₄₈₁ + T₄₈₂ + ... + T₅₅₇.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10409399 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10409393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4199 + ... + 6200.

It is an arithmetic number, because the mean of its divisors is an integer number (873600).

Almost surely, 2^10409399 is an apocalyptic number.

10409399 is a deficient number, since it is larger than the sum of its proper divisors (3568201).

10409399 is a wasteful number, since it uses less digits than its factorization.

10409399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10430.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 10409399 is about 3226.3600233080. The cubic root of 10409399 is about 218.3443132342.

The spelling of 10409399 in words is "ten million, four hundred nine thousand, three hundred ninety-nine".