1253424220 has 24 divisors (see below), whose sum is σ = 2636324208. Its totient is φ = 500582400.

The previous prime is 1253424217. The next prime is 1253424223. The reversal of 1253424220 is 224243521.

It is an interprime number because it is at equal distance from previous prime (1253424217) and next prime (1253424223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253424223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36066 + ... + 61705.

It is an arithmetic number, because the mean of its divisors is an integer number (109846842).

Almost surely, 2^1253424220 is an apocalyptic number.

1253424220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253424220 is an abundant number, since it is smaller than the sum of its proper divisors (1382899988).

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

1253424220 is a wasteful number, since it uses less digits than its factorization.

1253424220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98421 (or 98419 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1253424220 is about 35403.7317242124. The cubic root of 1253424220 is about 1078.2000826461.

Adding to 1253424220 its reverse (224243521), we get a palindrome (1477667741).

The spelling of 1253424220 in words is "one billion, two hundred fifty-three million, four hundred twenty-four thousand, two hundred twenty".