2507642 has 16 divisors (see below), whose sum is σ = 3932712. Its totient is φ = 1198080.

The previous prime is 2507641. The next prime is 2507647. The reversal of 2507642 is 2467052.

2507642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2399401 + 108241 = 1549^2 + 329^2 .

It is not an unprimeable number, because it can be changed into a prime (2507641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4058 + ... + 4634.

2^2507642 is an apocalyptic number.

2507642 is a deficient number, since it is larger than the sum of its proper divisors (1425070).

2507642 is a wasteful number, since it uses less digits than its factorization.

2507642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2507642 is about 1583.5535987140. The cubic root of 2507642 is about 135.8590306892.

The spelling of 2507642 in words is "two million, five hundred seven thousand, six hundred forty-two".