1252236028 has 12 divisors (see below), whose sum is σ = 2203656840. Its totient is φ = 622619792.

The previous prime is 1252236019. The next prime is 1252236043. The reversal of 1252236028 is 8206322521.

It is a congruent number.

It is an unprimeable number.

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, 873751 + ... + 875182.

It is an arithmetic number, because the mean of its divisors is an integer number (183638070).

Almost surely, 2^1252236028 is an apocalyptic number.

It is an amenable number.

1252236028 is a deficient number, since it is larger than the sum of its proper divisors (951420812).

1252236028 is a wasteful number, since it uses less digits than its factorization.

1252236028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749116 (or 1749114 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1252236028 is about 35386.9471415662. The cubic root of 1252236028 is about 1077.8592792380.

Adding to 1252236028 its reverse (8206322521), we get a palindrome (9458558549).

The spelling of 1252236028 in words is "one billion, two hundred fifty-two million, two hundred thirty-six thousand, twenty-eight".