10240649 has 4 divisors (see below), whose sum is σ = 10336464. Its totient is φ = 10144836.

The previous prime is 10240631. The next prime is 10240673. The reversal of 10240649 is 94604201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10240649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10240609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47747 + ... + 47960.

It is an arithmetic number, because the mean of its divisors is an integer number (2584116).

Almost surely, 2^10240649 is an apocalyptic number.

It is an amenable number.

10240649 is a deficient number, since it is larger than the sum of its proper divisors (95815).

10240649 is an equidigital number, since it uses as much as digits as its factorization.

10240649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95814.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 10240649 is about 3200.1014046433. The cubic root of 10240649 is about 217.1579968792.

The spelling of 10240649 in words is "ten million, two hundred forty thousand, six hundred forty-nine".