401775441 has 16 divisors (see below), whose sum is σ = 550851840. Its totient is φ = 260324480.

The previous prime is 401775421. The next prime is 401775461. The reversal of 401775441 is 144577104.

It is an interprime number because it is at equal distance from previous prime (401775421) and next prime (401775461).

It is a cyclic number.

It is not a de Polignac number, because 401775441 - 2²¹ = 399678289 is a prime.

It is a super-2 number, since 2×401775441² = 322847009981488962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401775401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27016 + ... + 39158.

It is an arithmetic number, because the mean of its divisors is an integer number (34428240).

Almost surely, 2^401775441 is an apocalyptic number.

401775441 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

401775441 is a deficient number, since it is larger than the sum of its proper divisors (149076399).

401775441 is a wasteful number, since it uses less digits than its factorization.

401775441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12456.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 401775441 is about 20044.3368810245. The cubic root of 401775441 is about 737.8948209035.

The spelling of 401775441 in words is "four hundred one million, seven hundred seventy-five thousand, four hundred forty-one".