1252018944 has 270 divisors, whose sum is σ = 4111761500. Its totient is φ = 378639360.

The previous prime is 1252018931. The next prime is 1252018967. The reversal of 1252018944 is 4498102521.

1252018944 is a `hidden beast` number, since 12 + 520 + 1 + 89 + 44 = 666.

It is a super-2 number, since 2×1252018944² = 3135102872269750272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1252018899 and 1252018908.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2508807 + ... + 2509305.

Almost surely, 2^1252018944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252018944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2055880750).

1252018944 is an abundant number, since it is smaller than the sum of its proper divisors (2859742556).

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

1252018944 is an equidigital number, since it uses as much as digits as its factorization.

1252018944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1252018944 is about 35383.8797194429. The cubic root of 1252018944 is about 1077.7969907873.

The spelling of 1252018944 in words is "one billion, two hundred fifty-two million, eighteen thousand, nine hundred forty-four".