1252023892 has 18 divisors (see below), whose sum is σ = 2548763322. Its totient is φ = 536581584.

The previous prime is 1252023887. The next prime is 1252023937. The reversal of 1252023892 is 2983202521.

It can be written as a sum of positive squares in only one way, i.e., 913611076 + 338412816 = 30226^2 + 18396^2 .

It is a super-2 number, since 2×1252023892² = 3135127652277655328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3193743 + ... + 3194134.

Almost surely, 2^1252023892 is an apocalyptic number.

It is an amenable number.

1252023892 is an abundant number, since it is smaller than the sum of its proper divisors (1296739430).

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

1252023892 is a wasteful number, since it uses less digits than its factorization.

1252023892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6387895 (or 6387886 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1252023892 is about 35383.9496382187. The cubic root of 1252023892 is about 1077.7984106094.

The spelling of 1252023892 in words is "one billion, two hundred fifty-two million, twenty-three thousand, eight hundred ninety-two".