2780000252 has 12 divisors (see below), whose sum is σ = 4866836520. Its totient is φ = 1389475536.

The previous prime is 2780000221. The next prime is 2780000273. The reversal of 2780000252 is 2520000872.

It is a super-2 number, since 2×2780000252² = 15456802802240127008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119102 + ... + 140517.

It is an arithmetic number, because the mean of its divisors is an integer number (405569710).

Almost surely, 2^2780000252 is an apocalyptic number.

It is an amenable number.

2780000252 is a deficient number, since it is larger than the sum of its proper divisors (2086836268).

2780000252 is a wasteful number, since it uses less digits than its factorization.

2780000252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262300 (or 262298 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2780000252 is about 52725.7076955824. The cubic root of 2780000252 is about 1406.0959103670.

The spelling of 2780000252 in words is "two billion, seven hundred eighty million, two hundred fifty-two", and thus it is an aban number.