340400132423 has 48 divisors (see below), whose sum is σ = 399097737216. Its totient is φ = 289558488960.

The previous prime is 340400132393. The next prime is 340400132447. The reversal of 340400132423 is 324231004043.

It is not a de Polignac number, because 340400132423 - 2¹⁶ = 340400066887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340400132392 and 340400132401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340400132453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9091940 + ... + 9129302.

It is an arithmetic number, because the mean of its divisors is an integer number (8314536192).

Almost surely, 2^340400132423 is an apocalyptic number.

340400132423 is a deficient number, since it is larger than the sum of its proper divisors (58697604793).

340400132423 is a wasteful number, since it uses less digits than its factorization.

340400132423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37504 (or 37491 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 340400132423 its reverse (324231004043), we get a palindrome (664631136466).

The spelling of 340400132423 in words is "three hundred forty billion, four hundred million, one hundred thirty-two thousand, four hundred twenty-three".