10399624 has 8 divisors (see below), whose sum is σ = 19499310. Its totient is φ = 5199808.

The previous prime is 10399621. The next prime is 10399633. The reversal of 10399624 is 42699301.

It can be written as a sum of positive squares in only one way, i.e., 10355524 + 44100 = 3218^2 + 210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 10399624.

It is not an unprimeable number, because it can be changed into a prime (10399621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649969 + ... + 649984.

Almost surely, 2^10399624 is an apocalyptic number.

It is an amenable number.

10399624 is a deficient number, since it is larger than the sum of its proper divisors (9099686).

10399624 is a wasteful number, since it uses less digits than its factorization.

10399624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299959 (or 1299955 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 10399624 is about 3224.8448024672. The cubic root of 10399624 is about 218.2759460438.

The spelling of 10399624 in words is "ten million, three hundred ninety-nine thousand, six hundred twenty-four".