40147047452 has 12 divisors (see below), whose sum is σ = 70645496376. Its totient is φ = 19962619920.

The previous prime is 40147047407. The next prime is 40147047491. The reversal of 40147047452 is 25474074104.

It is a happy number.

It is a super-2 number, since 2×40147047452² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 27725138 + ... + 27726585.

It is an arithmetic number, because the mean of its divisors is an integer number (5887124698).

Almost surely, 2^40147047452 is an apocalyptic number.

It is an amenable number.

40147047452 is a deficient number, since it is larger than the sum of its proper divisors (30498448924).

40147047452 is a wasteful number, since it uses less digits than its factorization.

40147047452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55451908 (or 55451906 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 38.

The spelling of 40147047452 in words is "forty billion, one hundred forty-seven million, forty-seven thousand, four hundred fifty-two".