401033321 has 4 divisors (see below), whose sum is σ = 431882052. Its totient is φ = 370184592.

The previous prime is 401033291. The next prime is 401033333. The reversal of 401033321 is 123330104.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 257153296 + 143880025 = 16036^2 + 11995^2 .

It is a cyclic number.

It is not a de Polignac number, because 401033321 - 2²⁶ = 333924457 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 401033321.

It is not an unprimeable number, because it can be changed into a prime (401033371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15424346 + ... + 15424371.

It is an arithmetic number, because the mean of its divisors is an integer number (107970513).

Almost surely, 2^401033321 is an apocalyptic number.

It is an amenable number.

401033321 is a deficient number, since it is larger than the sum of its proper divisors (30848731).

401033321 is a wasteful number, since it uses less digits than its factorization.

401033321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30848730.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 401033321 is about 20025.8163628852. The cubic root of 401033321 is about 737.4402186916.

Adding to 401033321 its reverse (123330104), we get a palindrome (524363425).

The spelling of 401033321 in words is "four hundred one million, thirty-three thousand, three hundred twenty-one".