1252718430 has 64 divisors (see below), whose sum is σ = 3059451648. Its totient is φ = 328204800.

The previous prime is 1252718429. The next prime is 1252718549. The reversal of 1252718430 is 348172521.

It is a junction number, because it is equal to n+sod(n) for n = 1252718391 and 1252718400.

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, 1191405 + ... + 1192455.

It is an arithmetic number, because the mean of its divisors is an integer number (47803932).

Almost surely, 2^1252718430 is an apocalyptic number.

1252718430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252718430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1529725824).

1252718430 is an abundant number, since it is smaller than the sum of its proper divisors (1806733218).

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

1252718430 is a wasteful number, since it uses less digits than its factorization.

1252718430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1252718430 is about 35393.7625860829. The cubic root of 1252718430 is about 1077.9976702724.

The spelling of 1252718430 in words is "one billion, two hundred fifty-two million, seven hundred eighteen thousand, four hundred thirty".