43874203323690 has 128 divisors (see below), whose sum is σ = 119863461795840. Its totient is φ = 11413285977600.

The previous prime is 43874203323661. The next prime is 43874203323697. The reversal of 43874203323690 is 9632330247834.

43874203323690 is a `hidden beast` number, since 4 + 3 + 8 + 74 + 203 + 3 + 2 + 369 + 0 = 666.

It is a super-2 number, since 2×43874203323690² (a number of 28 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (43874203323697) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113507032 + ... + 113892908.

It is an arithmetic number, because the mean of its divisors is an integer number (936433295280).

Almost surely, 2^{43874203323690} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43874203323690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59931730897920).

43874203323690 is an abundant number, since it is smaller than the sum of its proper divisors (75989258472150).

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

43874203323690 is a wasteful number, since it uses less digits than its factorization.

43874203323690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396205 (or 396199 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 54.

The spelling of 43874203323690 in words is "forty-three trillion, eight hundred seventy-four billion, two hundred three million, three hundred twenty-three thousand, six hundred ninety".