2730915 has 40 divisors (see below), whose sum is σ = 5349168. Its totient is φ = 1321920.

The previous prime is 2730911. The next prime is 2730919. The reversal of 2730915 is 5190372.

2730915 = T₁₁ + T₁₂ + ... + T₂₅₃.

It is an interprime number because it is at equal distance from previous prime (2730911) and next prime (2730919).

It is not a de Polignac number, because 2730915 - 2² = 2730911 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (2730911) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4149 + ... + 4761.

2^2730915 is an apocalyptic number.

2730915 is a deficient number, since it is larger than the sum of its proper divisors (2618253).

2730915 is a wasteful number, since it uses less digits than its factorization.

2730915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2730915 is about 1652.5480325848. The cubic root of 2730915 is about 139.7771113221. Note that the first 3 decimals are identical.

The spelling of 2730915 in words is "two million, seven hundred thirty thousand, nine hundred fifteen".