401323445 has 4 divisors (see below), whose sum is σ = 481588140. Its totient is φ = 321058752.

The previous prime is 401323409. The next prime is 401323463. The reversal of 401323445 is 544323104.

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 57183844 + 344139601 = 7562^2 + 18551^2 .

It is a cyclic number.

It is not a de Polignac number, because 401323445 - 2¹⁰ = 401322421 is a prime.

It is a super-2 number, since 2×401323445² = 322121015013336050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40132340 + ... + 40132349.

It is an arithmetic number, because the mean of its divisors is an integer number (120397035).

Almost surely, 2^401323445 is an apocalyptic number.

It is an amenable number.

401323445 is a deficient number, since it is larger than the sum of its proper divisors (80264695).

401323445 is an equidigital number, since it uses as much as digits as its factorization.

401323445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80264694.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 401323445 is about 20033.0588028888. The cubic root of 401323445 is about 737.6180073543.

Adding to 401323445 its reverse (544323104), we get a palindrome (945646549).

The spelling of 401323445 in words is "four hundred one million, three hundred twenty-three thousand, four hundred forty-five".