2749530 has 32 divisors (see below), whose sum is σ = 7542144. Its totient is φ = 628416.

The previous prime is 2749511. The next prime is 2749531. The reversal of 2749530 is 359472.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2749531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6337 + ... + 6756.

It is an arithmetic number, because the mean of its divisors is an integer number (235692).

2^2749530 is an apocalyptic number.

2749530 is an abundant number, since it is smaller than the sum of its proper divisors (4792614).

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

2749530 is a wasteful number, since it uses less digits than its factorization.

2749530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13110.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2749530 is about 1658.1706787903. The cubic root of 2749530 is about 140.0939845114.

The spelling of 2749530 in words is "two million, seven hundred forty-nine thousand, five hundred thirty".