43403842840 has 32 divisors (see below), whose sum is σ = 97803816480. Its totient is φ = 17335729152.

The previous prime is 43403842829. The next prime is 43403842841. The reversal of 43403842840 is 4824830434.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 43403842793 and 43403842802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43403842841) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 779244 + ... + 833083.

It is an arithmetic number, because the mean of its divisors is an integer number (3056369265).

Almost surely, 2^43403842840 is an apocalyptic number.

43403842840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43403842840 is an abundant number, since it is smaller than the sum of its proper divisors (54399973640).

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

43403842840 is a wasteful number, since it uses less digits than its factorization.

43403842840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613011 (or 1613007 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 43403842840 in words is "forty-three billion, four hundred three million, eight hundred forty-two thousand, eight hundred forty".