40340231452 has 12 divisors (see below), whose sum is σ = 70619626840. Its totient is φ = 20163195216.

The previous prime is 40340231429. The next prime is 40340231453. The reversal of 40340231452 is 25413204304.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40340231452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340231453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1717002 + ... + 1740337.

Almost surely, 2^40340231452 is an apocalyptic number.

It is an amenable number.

40340231452 is a deficient number, since it is larger than the sum of its proper divisors (30279395388).

40340231452 is a wasteful number, since it uses less digits than its factorization.

40340231452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460260 (or 3460258 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 40340231452 its reverse (25413204304), we get a palindrome (65753435756).

The spelling of 40340231452 in words is "forty billion, three hundred forty million, two hundred thirty-one thousand, four hundred fifty-two".