43256429040 has 160 divisors (see below), whose sum is σ = 153984787200. Its totient is φ = 9934479360.

The previous prime is 43256429039. The next prime is 43256429063. The reversal of 43256429040 is 4092465234.

It is a super-2 number, since 2×43256429040² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43256429040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381025 + ... + 481344.

It is an arithmetic number, because the mean of its divisors is an integer number (962404920).

Almost surely, 2^43256429040 is an apocalyptic number.

43256429040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43256429040 is an abundant number, since it is smaller than the sum of its proper divisors (110728358160).

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

43256429040 is a wasteful number, since it uses less digits than its factorization.

43256429040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862415 (or 862409 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 43256429040 in words is "forty-three billion, two hundred fifty-six million, four hundred twenty-nine thousand, forty".