10639449 has 12 divisors (see below), whose sum is σ = 16177200. Its totient is φ = 6719544.

The previous prime is 10639439. The next prime is 10639451. The reversal of 10639449 is 94493601.

10639449 is a `hidden beast` number, since 10 + 639 + 4 + 4 + 9 = 666.

It is not a de Polignac number, because 10639449 - 2¹¹ = 10637401 is a prime.

It is a super-2 number, since 2×10639449² = 226395750047202, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10639429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30939 + ... + 31280.

It is an arithmetic number, because the mean of its divisors is an integer number (1348100).

Almost surely, 2^10639449 is an apocalyptic number.

10639449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10639449 is a deficient number, since it is larger than the sum of its proper divisors (5537751).

10639449 is a wasteful number, since it uses less digits than its factorization.

10639449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62244 (or 62241 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 10639449 is about 3261.8168250225. The cubic root of 10639449 is about 219.9410930440.

The spelling of 10639449 in words is "ten million, six hundred thirty-nine thousand, four hundred forty-nine".