43948221 has 8 divisors (see below), whose sum is σ = 58949184. Its totient is φ = 29123040.

The previous prime is 43948211. The next prime is 43948271. The reversal of 43948221 is 12284934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43948221 - 2¹⁵ = 43915453 is a prime.

It is a super-2 number, since 2×43948221² = 3862892258129682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43948211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43360 + ... + 44361.

It is an arithmetic number, because the mean of its divisors is an integer number (7368648).

Almost surely, 2^43948221 is an apocalyptic number.

It is an amenable number.

43948221 is a deficient number, since it is larger than the sum of its proper divisors (15000963).

43948221 is a wasteful number, since it uses less digits than its factorization.

43948221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87891.

The product of its digits is 13824, while the sum is 33.

The square root of 43948221 is about 6629.3454428020. The cubic root of 43948221 is about 352.8962959124.

The spelling of 43948221 in words is "forty-three million, nine hundred forty-eight thousand, two hundred twenty-one".