40381927 has 2 divisors, whose sum is σ = 40381928. Its totient is φ = 40381926.

The previous prime is 40381879. The next prime is 40381967. The reversal of 40381927 is 72918304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40381927 - 2²³ = 31993319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40381892 and 40381901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40381967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20190963 + 20190964.

It is an arithmetic number, because the mean of its divisors is an integer number (20190964).

Almost surely, 2^40381927 is an apocalyptic number.

40381927 is a deficient number, since it is larger than the sum of its proper divisors (1).

40381927 is an equidigital number, since it uses as much as digits as its factorization.

40381927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 40381927 is about 6354.6775685317. The cubic root of 40381927 is about 343.0802199130.

The spelling of 40381927 in words is "forty million, three hundred eighty-one thousand, nine hundred twenty-seven".