2729481 has 8 divisors (see below), whose sum is σ = 3646944. Its totient is φ = 1815840.

The previous prime is 2729473. The next prime is 2729491. The reversal of 2729481 is 1849272.

It is a happy number.

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

It is not a de Polignac number, because 2729481 - 2³ = 2729473 is a prime.

It is a super-2 number, since 2×2729481² = 14900133058722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2729491) 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, 2326 + ... + 3296.

It is an arithmetic number, because the mean of its divisors is an integer number (455868).

2^2729481 is an apocalyptic number.

It is an amenable number.

2729481 is a deficient number, since it is larger than the sum of its proper divisors (917463).

2729481 is an equidigital number, since it uses as much as digits as its factorization.

2729481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911.

The product of its digits is 8064, while the sum is 33.

The square root of 2729481 is about 1652.1141001759. The cubic root of 2729481 is about 139.7526414440.

The spelling of 2729481 in words is "two million, seven hundred twenty-nine thousand, four hundred eighty-one".