43744441 has 32 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 35562240.

The previous prime is 43744427. The next prime is 43744453. The reversal of 43744441 is 14444734.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43744441 - 2⁷ = 43744313 is a prime.

It is a super-2 number, since 2×43744441² = 3827152236804962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43744411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221955 + ... + 222151.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^43744441 is an apocalyptic number.

It is an amenable number.

43744441 is a deficient number, since it is larger than the sum of its proper divisors (9477959).

43744441 is a wasteful number, since it uses less digits than its factorization.

43744441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its digits is 21504, while the sum is 31.

The square root of 43744441 is about 6613.9580434109. The cubic root of 43744441 is about 352.3500118059.

The spelling of 43744441 in words is "forty-three million, seven hundred forty-four thousand, four hundred forty-one".