2640362 has 4 divisors (see below), whose sum is σ = 3960546. Its totient is φ = 1320180.

The previous prime is 2640361. The next prime is 2640367. The reversal of 2640362 is 2630462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2630462 = 2 ⋅1315231.

It can be written as a sum of positive squares in only one way, i.e., 1739761 + 900601 = 1319^2 + 949^2 .

It is a super-2 number, since 2×2640362² = 13943022982088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2640361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660089 + ... + 660092.

2^2640362 is an apocalyptic number.

2640362 is a deficient number, since it is larger than the sum of its proper divisors (1320184).

2640362 is a wasteful number, since it uses less digits than its factorization.

2640362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320183.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2640362 is about 1624.9190749080. The cubic root of 2640362 is about 138.2147814156.

The spelling of 2640362 in words is "two million, six hundred forty thousand, three hundred sixty-two".