10649642 has 8 divisors (see below), whose sum is σ = 16132932. Its totient is φ = 5272000.

The previous prime is 10649629. The next prime is 10649663. The reversal of 10649642 is 24694601.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10621081 + 28561 = 3259^2 + 169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10649642² = 226829749456328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10649599 and 10649608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26159 + ... + 26562.

Almost surely, 2^10649642 is an apocalyptic number.

10649642 is a deficient number, since it is larger than the sum of its proper divisors (5483290).

10649642 is a wasteful number, since it uses less digits than its factorization.

10649642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52824.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 10649642 is about 3263.3789237537. The cubic root of 10649642 is about 220.0113079587.

The spelling of 10649642 in words is "ten million, six hundred forty-nine thousand, six hundred forty-two".