400023141 has 16 divisors (see below), whose sum is σ = 645416064. Its totient is φ = 215138304.

The previous prime is 400023139. The next prime is 400023161. The reversal of 400023141 is 141320004.

It is not a de Polignac number, because 400023141 - 2¹ = 400023139 is a prime.

It is a super-3 number, since 3×400023141³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400023141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400023161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559900 + ... + 560613.

It is an arithmetic number, because the mean of its divisors is an integer number (40338504).

Almost surely, 2^400023141 is an apocalyptic number.

It is an amenable number.

400023141 is a deficient number, since it is larger than the sum of its proper divisors (245392923).

400023141 is a wasteful number, since it uses less digits than its factorization.

400023141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120540.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 400023141 is about 20000.5785166330. The cubic root of 400023141 is about 736.8205081496.

Adding to 400023141 its reverse (141320004), we get a palindrome (541343145).

The spelling of 400023141 in words is "four hundred million, twenty-three thousand, one hundred forty-one".