2241729 has 32 divisors (see below), whose sum is σ = 3936000. Its totient is φ = 1233792.

The previous prime is 2241727. The next prime is 2241751. The reversal of 2241729 is 9271422.

It is not a de Polignac number, because 2241729 - 2¹ = 2241727 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

2241729 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2241721) 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, 5277 + ... + 5685.

It is an arithmetic number, because the mean of its divisors is an integer number (123000).

2^2241729 is an apocalyptic number.

2241729 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2241729 is a deficient number, since it is larger than the sum of its proper divisors (1694271).

2241729 is a wasteful number, since it uses less digits than its factorization.

2241729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 448 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2241729 is about 1497.2404616494. The cubic root of 2241729 is about 130.8763084737.

It can be divided in two parts, 224 and 1729, that added together give a triangular number (1953 = T₆₂).

The spelling of 2241729 in words is "two million, two hundred forty-one thousand, seven hundred twenty-nine".