40340431134 has 40 divisors (see below), whose sum is σ = 95149952040. Its totient is φ = 12739082544.

The previous prime is 40340431091. The next prime is 40340431169. The reversal of 40340431134 is 43113404304.

40340431134 is a `hidden beast` number, since 4 + 0 + 340 + 4 + 311 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40340431098 and 40340431107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6549949 + ... + 6556104.

It is an arithmetic number, because the mean of its divisors is an integer number (2378748801).

Almost surely, 2^40340431134 is an apocalyptic number.

40340431134 is an abundant number, since it is smaller than the sum of its proper divisors (54809520906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40340431134 is a wasteful number, since it uses less digits than its factorization.

40340431134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13106086 (or 13106077 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 40340431134 its reverse (43113404304), we get a palindrome (83453835438).

The spelling of 40340431134 in words is "forty billion, three hundred forty million, four hundred thirty-one thousand, one hundred thirty-four".