1253423320 has 32 divisors (see below), whose sum is σ = 2821618800. Its totient is φ = 501117568.

The previous prime is 1253423291. The next prime is 1253423321. The reversal of 1253423320 is 233243521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253423321) 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, 86862 + ... + 100258.

Almost surely, 2^1253423320 is an apocalyptic number.

1253423320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253423320 is an abundant number, since it is smaller than the sum of its proper divisors (1568195480).

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

1253423320 is a wasteful number, since it uses less digits than its factorization.

1253423320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15747 (or 15743 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1253423320 is about 35403.7190136856. The cubic root of 1253423320 is about 1078.1998245849.

Adding to 1253423320 its reverse (233243521), we get a palindrome (1486666841).

The spelling of 1253423320 in words is "one billion, two hundred fifty-three million, four hundred twenty-three thousand, three hundred twenty".