1252076940 has 144 divisors (see below), whose sum is σ = 3958674720. Its totient is φ = 332190720.

The previous prime is 1252076927. The next prime is 1252076957. The reversal of 1252076940 is 496702521.

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 = 1252076895 and 1252076904.

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 47 ways as a sum of consecutive naturals, for example, 1170726 + ... + 1171794.

It is a vampire number, since it can be written as 19242 ⋅ 65070 (with its own digits).

Almost surely, 2^1252076940 is an apocalyptic number.

1252076940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252076940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1979337360).

1252076940 is an abundant number, since it is smaller than the sum of its proper divisors (2706597780).

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

1252076940 is a wasteful number, since it uses less digits than its factorization.

1252076940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1252076940 is about 35384.6992356866. The cubic root of 1252076940 is about 1077.8136324283.

The spelling of 1252076940 in words is "one billion, two hundred fifty-two million, seventy-six thousand, nine hundred forty".