10209742 has 8 divisors (see below), whose sum is σ = 15329376. Its totient is φ = 5099952.

The previous prime is 10209739. The next prime is 10209799. The reversal of 10209742 is 24790201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258 + ... + 4690.

It is an arithmetic number, because the mean of its divisors is an integer number (1916172).

Almost surely, 2^10209742 is an apocalyptic number.

10209742 is a deficient number, since it is larger than the sum of its proper divisors (5119634).

10209742 is a wasteful number, since it uses less digits than its factorization.

10209742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4922.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 10209742 is about 3195.2686897975. The cubic root of 10209742 is about 216.9393106845.

Adding to 10209742 its reverse (24790201), we get a palindrome (34999943).

The spelling of 10209742 in words is "ten million, two hundred nine thousand, seven hundred forty-two".