43243025636440 has 32 divisors (see below), whose sum is σ = 111196351637280. Its totient is φ = 14826180218112.

The previous prime is 43243025636429. The next prime is 43243025636491. The reversal of 43243025636440 is 4463652034234.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77219688357 + ... + 77219688916.

It is an arithmetic number, because the mean of its divisors is an integer number (3474885988665).

Almost surely, 2^{43243025636440} is an apocalyptic number.

43243025636440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43243025636440 is an abundant number, since it is smaller than the sum of its proper divisors (67953326000840).

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

43243025636440 is a wasteful number, since it uses less digits than its factorization.

43243025636440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154439377291 (or 154439377287 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 46.

The spelling of 43243025636440 in words is "forty-three trillion, two hundred forty-three billion, twenty-five million, six hundred thirty-six thousand, four hundred forty".