1252252430 has 32 divisors (see below), whose sum is σ = 2648122848. Its totient is φ = 420336000.

The previous prime is 1252252387. The next prime is 1252252447. The reversal of 1252252430 is 342522521.

It is a super-2 number, since 2×1252252430² = 3136272296881809800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252252430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436421 + ... + 439280.

It is an arithmetic number, because the mean of its divisors is an integer number (82753839).

Almost surely, 2^1252252430 is an apocalyptic number.

1252252430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252252430 is an abundant number, since it is smaller than the sum of its proper divisors (1395870418).

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

1252252430 is a wasteful number, since it uses less digits than its factorization.

1252252430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875732.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1252252430 is about 35387.1788929267. The cubic root of 1252252430 is about 1077.8639852120.

Adding to 1252252430 its reverse (342522521), we get a palindrome (1594774951).

The spelling of 1252252430 in words is "one billion, two hundred fifty-two million, two hundred fifty-two thousand, four hundred thirty".