2640602 has 4 divisors (see below), whose sum is σ = 3960906. Its totient is φ = 1320300.

The previous prime is 2640581. The next prime is 2640643. The reversal of 2640602 is 2060462.

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., 1343281 + 1297321 = 1159^2 + 1139^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660149 + ... + 660152.

2^2640602 is an apocalyptic number.

2640602 is a deficient number, since it is larger than the sum of its proper divisors (1320304).

2640602 is a wasteful number, since it uses less digits than its factorization.

2640602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320303.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2640602 is about 1624.9929230615. The cubic root of 2640602 is about 138.2189690412.

The spelling of 2640602 in words is "two million, six hundred forty thousand, six hundred two".