401940027 has 12 divisors (see below), whose sum is σ = 614732040. Its totient is φ = 252197568.

The previous prime is 401940013. The next prime is 401940031. The reversal of 401940027 is 720049104.

It is a happy number.

It is not a de Polignac number, because 401940027 - 2¹¹ = 401937979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (401940127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1313377 + ... + 1313682.

It is an arithmetic number, because the mean of its divisors is an integer number (51227670).

Almost surely, 2^401940027 is an apocalyptic number.

401940027 is a deficient number, since it is larger than the sum of its proper divisors (212792013).

401940027 is a wasteful number, since it uses less digits than its factorization.

401940027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627082 (or 2627079 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 401940027 is about 20048.4420092934. The cubic root of 401940027 is about 737.9955658843.

The spelling of 401940027 in words is "four hundred one million, nine hundred forty thousand, twenty-seven".