43138298940 has 48 divisors (see below), whose sum is σ = 131767896960. Its totient is φ = 10457769280.

The previous prime is 43138298939. The next prime is 43138298941. The reversal of 43138298940 is 4989283134.

It is an interprime number because it is at equal distance from previous prime (43138298939) and next prime (43138298941).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43138298941) 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 15 ways as a sum of consecutive naturals, for example, 32679870 + ... + 32681189.

It is an arithmetic number, because the mean of its divisors is an integer number (2745164520).

Almost surely, 2^43138298940 is an apocalyptic number.

It is an amenable number.

43138298940 is an abundant number, since it is smaller than the sum of its proper divisors (88629598020).

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

43138298940 is a wasteful number, since it uses less digits than its factorization.

43138298940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65361082 (or 65361080 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 43138298940 in words is "forty-three billion, one hundred thirty-eight million, two hundred ninety-eight thousand, nine hundred forty".