1252850842 has 16 divisors (see below), whose sum is σ = 1985898240. Its totient is φ = 591141888.

The previous prime is 1252850803. The next prime is 1252850849. The reversal of 1252850842 is 2480582521.

It is not an unprimeable number, because it can be changed into a prime (1252850849) 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 7 ways as a sum of consecutive naturals, for example, 54378 + ... + 73909.

It is an arithmetic number, because the mean of its divisors is an integer number (124118640).

Almost surely, 2^1252850842 is an apocalyptic number.

1252850842 is a deficient number, since it is larger than the sum of its proper divisors (733047398).

1252850842 is a wasteful number, since it uses less digits than its factorization.

1252850842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128565.

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 1252850842 is about 35395.6330922333. The cubic root of 1252850842 is about 1078.0356502885.

The spelling of 1252850842 in words is "one billion, two hundred fifty-two million, eight hundred fifty thousand, eight hundred forty-two".