43304423040 has 512 divisors, whose sum is σ = 165430944000. Its totient is φ = 10669916160.

The previous prime is 43304423011. The next prime is 43304423053. The reversal of 43304423040 is 4032440334.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 43304422995 and 43304423013.

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, 13459512 + ... + 13462728.

Almost surely, 2^43304423040 is an apocalyptic number.

43304423040 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 43304423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82715472000).

43304423040 is an abundant number, since it is smaller than the sum of its proper divisors (122126520960).

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

43304423040 is a wasteful number, since it uses less digits than its factorization.

43304423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305 (or 3287 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 43304423040 its reverse (4032440334), we get a palindrome (47336863374).

The spelling of 43304423040 in words is "forty-three billion, three hundred four million, four hundred twenty-three thousand, forty".