10405238 has 4 divisors (see below), whose sum is σ = 15607860. Its totient is φ = 5202618.

The previous prime is 10405211. The next prime is 10405247. The reversal of 10405238 is 83250401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83250401 = 13 ⋅6403877.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2601308 + ... + 2601311.

It is an arithmetic number, because the mean of its divisors is an integer number (3901965).

Almost surely, 2^10405238 is an apocalyptic number.

10405238 is a deficient number, since it is larger than the sum of its proper divisors (5202622).

10405238 is an equidigital number, since it uses as much as digits as its factorization.

10405238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202621.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 10405238 is about 3225.7151145134. The cubic root of 10405238 is about 218.3152160766.

Adding to 10405238 its reverse (83250401), we get a palindrome (93655639).

The spelling of 10405238 in words is "ten million, four hundred five thousand, two hundred thirty-eight".