10649408 has 56 divisors (see below), whose sum is σ = 26359104. Its totient is φ = 4147200.

The previous prime is 10649407. The next prime is 10649413. The reversal of 10649408 is 80494601.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×10649408² = 226819781500928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10649407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3848 + ... + 6008.

Almost surely, 2^10649408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10649408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13179552).

10649408 is an abundant number, since it is smaller than the sum of its proper divisors (15709696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10649408 is a wasteful number, since it uses less digits than its factorization.

10649408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 10649408 is about 3263.3430711465. The cubic root of 10649408 is about 220.0096965423.

The spelling of 10649408 in words is "ten million, six hundred forty-nine thousand, four hundred eight".