43290474840 has 512 divisors, whose sum is σ = 158070528000. Its totient is φ = 10495180800.

The previous prime is 43290474833. The next prime is 43290474841. The reversal of 43290474840 is 4847409234.

43290474840 is a `hidden beast` number, since 43 + 2 + 90 + 47 + 484 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43290474841) 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 127 ways as a sum of consecutive naturals, for example, 98611341 + ... + 98611779.

It is an arithmetic number, because the mean of its divisors is an integer number (308731500).

Almost surely, 2^43290474840 is an apocalyptic number.

43290474840 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 43290474840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79035264000).

43290474840 is an abundant number, since it is smaller than the sum of its proper divisors (114780053160).

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

43290474840 is a wasteful number, since it uses less digits than its factorization.

43290474840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 43290474840 in words is "forty-three billion, two hundred ninety million, four hundred seventy-four thousand, eight hundred forty".