43801156 has 48 divisors (see below), whose sum is σ = 92856960. Its totient is φ = 17660160.

The previous prime is 43801127. The next prime is 43801159. The reversal of 43801156 is 65110834.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (43801159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149346 + ... + 149638.

It is an arithmetic number, because the mean of its divisors is an integer number (1934520).

Almost surely, 2^43801156 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 43801156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46428480).

43801156 is an abundant number, since it is smaller than the sum of its proper divisors (49055804).

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

43801156 is a wasteful number, since it uses less digits than its factorization.

43801156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 43801156 is about 6618.2441780279. The cubic root of 43801156 is about 352.5022208669.

The spelling of 43801156 in words is "forty-three million, eight hundred one thousand, one hundred fifty-six".