43102020440 has 16 divisors (see below), whose sum is σ = 96979546080. Its totient is φ = 17240808160.

The previous prime is 43102020419. The next prime is 43102020461. The reversal of 43102020440 is 4402020134.

It is an interprime number because it is at equal distance from previous prime (43102020419) and next prime (43102020461).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538775216 + ... + 538775295.

It is an arithmetic number, because the mean of its divisors is an integer number (6061221630).

Almost surely, 2^43102020440 is an apocalyptic number.

43102020440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43102020440 is an abundant number, since it is smaller than the sum of its proper divisors (53877525640).

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

43102020440 is a wasteful number, since it uses less digits than its factorization.

43102020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077550522 (or 1077550518 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 43102020440 its reverse (4402020134), we get a palindrome (47504040574).

The spelling of 43102020440 in words is "forty-three billion, one hundred two million, twenty thousand, four hundred forty".