2742646 has 8 divisors (see below), whose sum is σ = 4255920. Its totient is φ = 1324008.

The previous prime is 2742637. The next prime is 2742647. The reversal of 2742646 is 6462472.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23586 + ... + 23701.

It is an arithmetic number, because the mean of its divisors is an integer number (531990).

2^2742646 is an apocalyptic number.

2742646 is a deficient number, since it is larger than the sum of its proper divisors (1513274).

2742646 is a wasteful number, since it uses less digits than its factorization.

2742646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47318.

The product of its digits is 16128, while the sum is 31.

The square root of 2742646 is about 1656.0935963888. The cubic root of 2742646 is about 139.9769690006.

It can be divided in two parts, 27426 and 46, that added together give a palindrome (27472).

The spelling of 2742646 in words is "two million, seven hundred forty-two thousand, six hundred forty-six".