1253238 has 32 divisors (see below), whose sum is σ = 2923776. Its totient is φ = 350688.

The previous prime is 1253171. The next prime is 1253249. The reversal of 1253238 is 8323521.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1945 + ... + 2507.

It is an arithmetic number, because the mean of its divisors is an integer number (91368).

2^1253238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1461888).

1253238 is an abundant number, since it is smaller than the sum of its proper divisors (1670538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253238 is a wasteful number, since it uses less digits than its factorization.

1253238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628.

The product of its digits is 1440, while the sum is 24.

The square root of 1253238 is about 1119.4811298097. The cubic root of 1253238 is about 107.8146684294.

Adding to 1253238 its reverse (8323521), we get a palindrome (9576759).

The spelling of 1253238 in words is "one million, two hundred fifty-three thousand, two hundred thirty-eight".