1251042832 has 40 divisors (see below), whose sum is σ = 2700374040. Its totient is φ = 557491200.

The previous prime is 1251042811. The next prime is 1251042833. The reversal of 1251042832 is 2382401521.

It can be written as a sum of positive squares in 4 ways, for example, as 430336 + 1250612496 = 656^2 + 35364^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1251042832.

It is not an unprimeable number, because it can be changed into a prime (1251042833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97669 + ... + 109732.

It is an arithmetic number, because the mean of its divisors is an integer number (67509351).

Almost surely, 2^1251042832 is an apocalyptic number.

It is an amenable number.

1251042832 is an abundant number, since it is smaller than the sum of its proper divisors (1449331208).

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

1251042832 is a wasteful number, since it uses less digits than its factorization.

1251042832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207451 (or 207445 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1251042832 is about 35370.0838562761. The cubic root of 1251042832 is about 1077.5168235414.

The spelling of 1251042832 in words is "one billion, two hundred fifty-one million, forty-two thousand, eight hundred thirty-two".