10226391 has 8 divisors (see below), whose sum is σ = 15583104. Its totient is φ = 5843640.

The previous prime is 10226371. The next prime is 10226399. The reversal of 10226391 is 19362201.

10226391 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10226391 - 2⁷ = 10226263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10226399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243465 + ... + 243506.

It is an arithmetic number, because the mean of its divisors is an integer number (1947888).

Almost surely, 2^10226391 is an apocalyptic number.

10226391 is a deficient number, since it is larger than the sum of its proper divisors (5356713).

10226391 is an equidigital number, since it uses as much as digits as its factorization.

10226391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486981.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 10226391 is about 3197.8728867796. The cubic root of 10226391 is about 217.0571674366.

Adding to 10226391 its reverse (19362201), we get a palindrome (29588592).

The spelling of 10226391 in words is "ten million, two hundred twenty-six thousand, three hundred ninety-one".