401444033 has 4 divisors (see below), whose sum is σ = 402936660. Its totient is φ = 399951408.

The previous prime is 401443981. The next prime is 401444041. The reversal of 401444033 is 330444104.

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 175483009 + 225961024 = 13247^2 + 15032^2 .

It is a cyclic number.

It is not a de Polignac number, because 401444033 - 2¹⁸ = 401181889 is a prime.

It is a super-2 number, since 2×401444033² = 322314623262610178, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (401444933) 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, 745910 + ... + 746447.

It is an arithmetic number, because the mean of its divisors is an integer number (100734165).

Almost surely, 2^401444033 is an apocalyptic number.

It is an amenable number.

401444033 is a deficient number, since it is larger than the sum of its proper divisors (1492627).

401444033 is a wasteful number, since it uses less digits than its factorization.

401444033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492626.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 401444033 is about 20036.0683019399. The cubic root of 401444033 is about 737.6918787532.

Adding to 401444033 its reverse (330444104), we get a palindrome (731888137).

The spelling of 401444033 in words is "four hundred one million, four hundred forty-four thousand, thirty-three".