36457281 has 12 divisors (see below), whose sum is σ = 60183552. Its totient is φ = 20832696.

The previous prime is 36457279. The next prime is 36457283. The reversal of 36457281 is 18275463.

36457281 is a `hidden beast` number, since 3 + 6 + 4 + 572 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (36457279) and next prime (36457283).

It is not a de Polignac number, because 36457281 - 2¹ = 36457279 is a prime.

It is a super-2 number, since 2×36457281² = 2658266675825922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36457283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289281 + ... + 289406.

It is an arithmetic number, because the mean of its divisors is an integer number (5015296).

Almost surely, 2^36457281 is an apocalyptic number.

It is an amenable number.

36457281 is a deficient number, since it is larger than the sum of its proper divisors (23726271).

36457281 is a wasteful number, since it uses less digits than its factorization.

36457281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578700 (or 578697 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 36457281 is about 6037.9865021379. The cubic root of 36457281 is about 331.5849103077.

The spelling of 36457281 in words is "thirty-six million, four hundred fifty-seven thousand, two hundred eighty-one".