43949136 has 240 divisors, whose sum is σ = 151990272. Its totient is φ = 10686720.

The previous prime is 43949117. The next prime is 43949207. The reversal of 43949136 is 63194934.

It is a junction number, because it is equal to n+sod(n) for n = 43949094 and 43949103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 935065 + ... + 935111.

Almost surely, 2^43949136 is an apocalyptic number.

43949136 is a gapful number since it is divisible by the number (46) 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 43949136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75995136).

43949136 is an abundant number, since it is smaller than the sum of its proper divisors (108041136).

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

43949136 is a wasteful number, since it uses less digits than its factorization.

43949136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 93 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 43949136 is about 6629.4144537810. The cubic root of 43949136 is about 352.8987449905.

It can be divided in two parts, 4394 and 9136, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 43949136 in words is "forty-three million, nine hundred forty-nine thousand, one hundred thirty-six".