401140023 has 16 divisors (see below), whose sum is σ = 550289376. Its totient is φ = 259765760.

The previous prime is 401140013. The next prime is 401140049. The reversal of 401140023 is 320041104.

It is a cyclic number.

It is not a de Polignac number, because 401140023 - 2¹³ = 401131831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 401139984 and 401140011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401140013) 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, 21661 + ... + 35657.

It is an arithmetic number, because the mean of its divisors is an integer number (34393086).

Almost surely, 2^401140023 is an apocalyptic number.

401140023 is a deficient number, since it is larger than the sum of its proper divisors (149149353).

401140023 is a wasteful number, since it uses less digits than its factorization.

401140023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14274.

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

The square root of 401140023 is about 20028.4802968173. The cubic root of 401140023 is about 737.5056158914.

Adding to 401140023 its reverse (320041104), we get a palindrome (721181127).

The spelling of 401140023 in words is "four hundred one million, one hundred forty thousand, twenty-three".