234400040444031 has 32 divisors (see below), whose sum is σ = 389652808089600. Its totient is φ = 121766007024480.

The previous prime is 234400040443999. The next prime is 234400040444047. The reversal of 234400040444031 is 130444040004432.

It is not a de Polignac number, because 234400040444031 - 2⁵ = 234400040443999 is a prime.

It is a super-2 number, since 2×234400040444031² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 234400040443983 and 234400040444001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234400040434031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185704630 + ... + 186962588.

It is an arithmetic number, because the mean of its divisors is an integer number (12176650252800).

Almost surely, 2^{234400040444031} is an apocalyptic number.

234400040444031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

234400040444031 is a deficient number, since it is larger than the sum of its proper divisors (155252767645569).

234400040444031 is a wasteful number, since it uses less digits than its factorization.

234400040444031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064619.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 234400040444031 its reverse (130444040004432), we get a palindrome (364844080448463).

The spelling of 234400040444031 in words is "two hundred thirty-four trillion, four hundred billion, forty million, four hundred forty-four thousand, thirty-one".