43673348928 has 336 divisors, whose sum is σ = 134738831360. Its totient is φ = 12440355840.

The previous prime is 43673348923. The next prime is 43673348963. The reversal of 43673348928 is 82984337634.

It is a super-2 number, since 2×43673348928² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43673348923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71949201 + ... + 71949807.

Almost surely, 2^43673348928 is an apocalyptic number.

43673348928 is a gapful number since it is divisible by the number (48) 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 43673348928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67369415680).

43673348928 is an abundant number, since it is smaller than the sum of its proper divisors (91065482432).

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

43673348928 is a wasteful number, since it uses less digits than its factorization.

43673348928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 805 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 57.

The spelling of 43673348928 in words is "forty-three billion, six hundred seventy-three million, three hundred forty-eight thousand, nine hundred twenty-eight".