10216449 has 12 divisors (see below), whose sum is σ = 15304016. Its totient is φ = 6810804.

The previous prime is 10216447. The next prime is 10216457. The reversal of 10216449 is 94461201.

10216449 is a `hidden beast` number, since 1 + 0 + 216 + 449 = 666.

It is not a de Polignac number, because 10216449 - 2¹ = 10216447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10216441) 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, 20779 + ... + 21264.

Almost surely, 2^10216449 is an apocalyptic number.

It is an amenable number.

10216449 is a deficient number, since it is larger than the sum of its proper divisors (5087567).

10216449 is an frugal number, since it uses more digits than its factorization.

10216449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42058 (or 42046 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 10216449 is about 3196.3180379931. The cubic root of 10216449 is about 216.9868043255.

The spelling of 10216449 in words is "ten million, two hundred sixteen thousand, four hundred forty-nine".