1253440230 has 64 divisors (see below), whose sum is σ = 3442203648. Its totient is φ = 286151040.

The previous prime is 1253440213. The next prime is 1253440247. The reversal of 1253440230 is 320443521.

It is an interprime number because it is at equal distance from previous prime (1253440213) and next prime (1253440247).

It is a super-2 number, since 2×1253440230² = 3142224820364905800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1253440230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194439 + ... + 200781.

It is an arithmetic number, because the mean of its divisors is an integer number (53784432).

Almost surely, 2^1253440230 is an apocalyptic number.

1253440230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253440230 is an abundant number, since it is smaller than the sum of its proper divisors (2188763418).

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

1253440230 is a wasteful number, since it uses less digits than its factorization.

1253440230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1253440230 is about 35403.9578295987. The cubic root of 1253440230 is about 1078.2046732467.

Adding to 1253440230 its reverse (320443521), we get a palindrome (1573883751).

The spelling of 1253440230 in words is "one billion, two hundred fifty-three million, four hundred forty thousand, two hundred thirty".