40144374029 has 4 divisors (see below), whose sum is σ = 42257235840. Its totient is φ = 38031512220.

The previous prime is 40144374013. The next prime is 40144374097. The reversal of 40144374029 is 92047344104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40144374029 - 2⁴ = 40144374013 is a prime.

It is a super-2 number, since 2×40144374029² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40144373983 and 40144374001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144374229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056430877 + ... + 1056430914.

It is an arithmetic number, because the mean of its divisors is an integer number (10564308960).

Almost surely, 2^40144374029 is an apocalyptic number.

It is an amenable number.

40144374029 is a deficient number, since it is larger than the sum of its proper divisors (2112861811).

40144374029 is a wasteful number, since it uses less digits than its factorization.

40144374029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112861810.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 40144374029 in words is "forty billion, one hundred forty-four million, three hundred seventy-four thousand, twenty-nine".