2729730 has 32 divisors (see below), whose sum is σ = 6897600. Its totient is φ = 689472.

The previous prime is 2729729. The next prime is 2729747. The reversal of 2729730 is 379272.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1825 + ... + 2964.

It is an arithmetic number, because the mean of its divisors is an integer number (215550).

2^2729730 is an apocalyptic number.

2729730 is an abundant number, since it is smaller than the sum of its proper divisors (4167870).

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

2729730 is a wasteful number, since it uses less digits than its factorization.

2729730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 2729730 is about 1652.1894564486. The cubic root of 2729730 is about 139.7568910125.

The spelling of 2729730 in words is "two million, seven hundred twenty-nine thousand, seven hundred thirty".