43406709948 has 216 divisors, whose sum is σ = 130836803552. Its totient is φ = 12342658176.

The previous prime is 43406709917. The next prime is 43406709967. The reversal of 43406709948 is 84990760434.

It is a happy number.

43406709948 is a `hidden beast` number, since 43 + 406 + 70 + 99 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 43406709894 and 43406709903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50886690 + ... + 50887542.

Almost surely, 2^43406709948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43406709948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65418401776).

43406709948 is an abundant number, since it is smaller than the sum of its proper divisors (87430093604).

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

43406709948 is an equidigital number, since it uses as much as digits as its factorization.

43406709948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1142 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 43406709948 in words is "forty-three billion, four hundred six million, seven hundred nine thousand, nine hundred forty-eight".