252780470 has 16 divisors (see below), whose sum is σ = 460118880. Its totient is φ = 99975744.

The previous prime is 252780469. The next prime is 252780491. The reversal of 252780470 is 74087252.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252780470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141122 + ... + 142901.

It is an arithmetic number, because the mean of its divisors is an integer number (28757430).

Almost surely, 2^252780470 is an apocalyptic number.

252780470 is a deficient number, since it is larger than the sum of its proper divisors (207338410).

252780470 is a wasteful number, since it uses less digits than its factorization.

252780470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284119.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 252780470 is about 15899.0713565290. The cubic root of 252780470 is about 632.2873683133.

The spelling of 252780470 in words is "two hundred fifty-two million, seven hundred eighty thousand, four hundred seventy".