401033771 has 4 divisors (see below), whose sum is σ = 401103072. Its totient is φ = 400964472.

The previous prime is 401033767. The next prime is 401033777. The reversal of 401033771 is 177330104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401033771 - 2² = 401033767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401033771.

It is not an unprimeable number, because it can be changed into a prime (401033777) 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 3 ways as a sum of consecutive naturals, for example, 25091 + ... + 37836.

It is an arithmetic number, because the mean of its divisors is an integer number (100275768).

Almost surely, 2^401033771 is an apocalyptic number.

401033771 is a deficient number, since it is larger than the sum of its proper divisors (69301).

401033771 is an equidigital number, since it uses as much as digits as its factorization.

401033771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69300.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 401033771 is about 20025.8275983790. The cubic root of 401033771 is about 737.4404945190.

Adding to 401033771 its reverse (177330104), we get a palindrome (578363875).

The spelling of 401033771 in words is "four hundred one million, thirty-three thousand, seven hundred seventy-one".