1052952381 has 24 divisors (see below), whose sum is σ = 1642124120. Its totient is φ = 646310016.

The previous prime is 1052952379. The next prime is 1052952403. The reversal of 1052952381 is 1832592501.

1052952381 is a `hidden beast` number, since 1 + 0 + 52 + 9 + 523 + 81 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 326380356 + 726572025 = 18066^2 + 26955^2 .

It is not a de Polignac number, because 1052952381 - 2¹ = 1052952379 is a prime.

It is a super-2 number, since 2×1052952381² = 2217417433307138322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052952181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35115 + ... + 57783.

Almost surely, 2^1052952381 is an apocalyptic number.

It is an amenable number.

1052952381 is a deficient number, since it is larger than the sum of its proper divisors (589171739).

1052952381 is a wasteful number, since it uses less digits than its factorization.

1052952381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23085 (or 23082 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1052952381 is about 32449.2277411959. The cubic root of 1052952381 is about 1017.3480968613.

The spelling of 1052952381 in words is "one billion, fifty-two million, nine hundred fifty-two thousand, three hundred eighty-one".