40001827 has 2 divisors, whose sum is σ = 40001828. Its totient is φ = 40001826.

The previous prime is 40001791. The next prime is 40001831. The reversal of 40001827 is 72810004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40001827 - 2¹¹ = 39999779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40001798 and 40001807.

It is not a weakly prime, because it can be changed into another prime (40001627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000913 + 20000914.

It is an arithmetic number, because the mean of its divisors is an integer number (20000914).

Almost surely, 2^40001827 is an apocalyptic number.

40001827 is a deficient number, since it is larger than the sum of its proper divisors (1).

40001827 is an equidigital number, since it uses as much as digits as its factorization.

40001827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 40001827 is about 6324.6997557196. The cubic root of 40001827 is about 342.0003961328. Note that the first 3 decimals are identical.

The spelling of 40001827 in words is "forty million, one thousand, eight hundred twenty-seven".