1252603240 has 32 divisors (see below), whose sum is σ = 3220980480. Its totient is φ = 429463872.

The previous prime is 1252603211. The next prime is 1252603243. The reversal of 1252603240 is 423062521.

It is not an unprimeable number, because it can be changed into a prime (1252603243) 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, 2236512 + ... + 2237071.

It is an arithmetic number, because the mean of its divisors is an integer number (100655640).

Almost surely, 2^1252603240 is an apocalyptic number.

1252603240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252603240 is an abundant number, since it is smaller than the sum of its proper divisors (1968377240).

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

1252603240 is a wasteful number, since it uses less digits than its factorization.

1252603240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473601 (or 4473597 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1252603240 is about 35392.1352845516. The cubic root of 1252603240 is about 1077.9646279023.

Adding to 1252603240 its reverse (423062521), we get a palindrome (1675665761).

The spelling of 1252603240 in words is "one billion, two hundred fifty-two million, six hundred three thousand, two hundred forty".