400022341 has 4 divisors (see below), whose sum is σ = 402570412. Its totient is φ = 397474272.

The previous prime is 400022309. The next prime is 400022443. The reversal of 400022341 is 143220004.

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 244296900 + 155725441 = 15630^2 + 12479^2 .

It is a cyclic number.

It is not a de Polignac number, because 400022341 - 2⁵ = 400022309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400023341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273800 + ... + 1274113.

It is an arithmetic number, because the mean of its divisors is an integer number (100642603).

Almost surely, 2^400022341 is an apocalyptic number.

It is an amenable number.

400022341 is a deficient number, since it is larger than the sum of its proper divisors (2548071).

400022341 is a wasteful number, since it uses less digits than its factorization.

400022341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548070.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 400022341 is about 20000.5585172015. The cubic root of 400022341 is about 736.8200169640.

Adding to 400022341 its reverse (143220004), we get a palindrome (543242345).

The spelling of 400022341 in words is "four hundred million, twenty-two thousand, three hundred forty-one".