1251834460 has 12 divisors (see below), whose sum is σ = 2628852408. Its totient is φ = 500733776.

The previous prime is 1251834449. The next prime is 1251834461. The reversal of 1251834460 is 644381521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251834461) 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 3 ways as a sum of consecutive naturals, for example, 31295842 + ... + 31295881.

It is an arithmetic number, because the mean of its divisors is an integer number (219071034).

Almost surely, 2^1251834460 is an apocalyptic number.

1251834460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1251834460 is an abundant number, since it is smaller than the sum of its proper divisors (1377017948).

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

1251834460 is a wasteful number, since it uses less digits than its factorization.

1251834460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62591732 (or 62591730 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1251834460 is about 35381.2727300757. The cubic root of 1251834460 is about 1077.7440506760.

The spelling of 1251834460 in words is "one billion, two hundred fifty-one million, eight hundred thirty-four thousand, four hundred sixty".