43023041040 has 320 divisors, whose sum is σ = 161991346176. Its totient is φ = 9220939776.

The previous prime is 43023041021. The next prime is 43023041099. The reversal of 43023041040 is 4014032034.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 43023040998 and 43023041016.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8079819 + ... + 8085141.

Almost surely, 2^43023041040 is an apocalyptic number.

43023041040 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 43023041040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80995673088).

43023041040 is an abundant number, since it is smaller than the sum of its proper divisors (118968305136).

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

43023041040 is a wasteful number, since it uses less digits than its factorization.

43023041040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646 (or 5640 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 43023041040 its reverse (4014032034), we get a palindrome (47037073074).

The spelling of 43023041040 in words is "forty-three billion, twenty-three million, forty-one thousand, forty".