2730455 has 32 divisors (see below), whose sum is σ = 4281984. Its totient is φ = 1622016.

The previous prime is 2730443. The next prime is 2730487. The reversal of 2730455 is 5540372.

2730455 = T₁₆ + T₁₇ + ... + T₂₅₃.

It is a cyclic number.

It is not a de Polignac number, because 2730455 - 2⁴ = 2730439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7559 + ... + 7911.

It is an arithmetic number, because the mean of its divisors is an integer number (133812).

2^2730455 is an apocalyptic number.

2730455 is a deficient number, since it is larger than the sum of its proper divisors (1551529).

2730455 is a wasteful number, since it uses less digits than its factorization.

2730455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 2730455 is about 1652.4088477129. The cubic root of 2730455 is about 139.7692627828.

The spelling of 2730455 in words is "two million, seven hundred thirty thousand, four hundred fifty-five".