10240739 has 4 divisors (see below), whose sum is σ = 10292400. Its totient is φ = 10189080.

The previous prime is 10240733. The next prime is 10240759. The reversal of 10240739 is 93704201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93704201 = 167 ⋅561103.

It is a cyclic number.

It is not a de Polignac number, because 10240739 - 2⁴ = 10240723 is a prime.

It is a super-2 number, since 2×10240739² = 209745470532242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10240733) 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 3 ways as a sum of consecutive naturals, for example, 25532 + ... + 25929.

It is an arithmetic number, because the mean of its divisors is an integer number (2573100).

Almost surely, 2^10240739 is an apocalyptic number.

10240739 is a deficient number, since it is larger than the sum of its proper divisors (51661).

10240739 is an equidigital number, since it uses as much as digits as its factorization.

10240739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51660.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 10240739 is about 3200.1154666668. The cubic root of 10240739 is about 217.1586330421.

The spelling of 10240739 in words is "ten million, two hundred forty thousand, seven hundred thirty-nine".