43740289652 has 48 divisors (see below), whose sum is σ = 85663992960. Its totient is φ = 19444284288.

The previous prime is 43740289651. The next prime is 43740289711. The reversal of 43740289652 is 25698204734.

It is a super-2 number, since 2×43740289652² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43740289652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43740289651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143423 + ... + 328710.

It is an arithmetic number, because the mean of its divisors is an integer number (1784666520).

Almost surely, 2^43740289652 is an apocalyptic number.

It is an amenable number.

43740289652 is a deficient number, since it is larger than the sum of its proper divisors (41923703308).

43740289652 is a wasteful number, since it uses less digits than its factorization.

43740289652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472232 (or 472230 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 43740289652 in words is "forty-three billion, seven hundred forty million, two hundred eighty-nine thousand, six hundred fifty-two".