36940381 has 2 divisors, whose sum is σ = 36940382. Its totient is φ = 36940380.

The previous prime is 36940361. The next prime is 36940399. The reversal of 36940381 is 18304963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36844900 + 95481 = 6070^2 + 309^2 .

It is an emirp because it is prime and its reverse (18304963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36940381 - 2⁵ = 36940349 is a prime.

It is a super-2 number, since 2×36940381² = 2729183496850322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36940361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18470190 + 18470191.

It is an arithmetic number, because the mean of its divisors is an integer number (18470191).

Almost surely, 2^36940381 is an apocalyptic number.

It is an amenable number.

36940381 is a deficient number, since it is larger than the sum of its proper divisors (1).

36940381 is an equidigital number, since it uses as much as digits as its factorization.

36940381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 36940381 is about 6077.8599029593. The cubic root of 36940381 is about 333.0431126114.

The spelling of 36940381 in words is "thirty-six million, nine hundred forty thousand, three hundred eighty-one".