43238343551040 has 5376 divisors, whose sum is σ = 197261800243200. Its totient is φ = 8851949568000.

The previous prime is 43238343550967. The next prime is 43238343551077. The reversal of 43238343551040 is 4015534383234.

It is a happy number.

43238343551040 is a `hidden beast` number, since 4 + 3 + 2 + 38 + 34 + 35 + 510 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 608990754205 + ... + 608990754275.

It is an arithmetic number, because the mean of its divisors is an integer number (36693043200).

Almost surely, 2^{43238343551040} is an apocalyptic number.

43238343551040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43238343551040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98630900121600).

43238343551040 is an abundant number, since it is smaller than the sum of its proper divisors (154023456692160).

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

43238343551040 is a wasteful number, since it uses less digits than its factorization.

43238343551040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 43238343551040 in words is "forty-three trillion, two hundred thirty-eight billion, three hundred forty-three million, five hundred fifty-one thousand, forty".