2615642 has 4 divisors (see below), whose sum is σ = 3923466. Its totient is φ = 1307820.

The previous prime is 2615623. The next prime is 2615651. The reversal of 2615642 is 2465162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2563201 + 52441 = 1601^2 + 229^2 .

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 as a sum of consecutive naturals, namely, 653909 + ... + 653912.

2^2615642 is an apocalyptic number.

2615642 is a deficient number, since it is larger than the sum of its proper divisors (1307824).

2615642 is a wasteful number, since it uses less digits than its factorization.

2615642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307823.

The product of its digits is 2880, while the sum is 26.

The square root of 2615642 is about 1617.2946546625. The cubic root of 2615642 is about 137.7820897502.

The spelling of 2615642 in words is "two million, six hundred fifteen thousand, six hundred forty-two".