2640262 has 8 divisors (see below), whose sum is σ = 4132656. Its totient is φ = 1262712.

The previous prime is 2640251. The next prime is 2640271. The reversal of 2640262 is 2620462.

It is a happy number.

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

It is a d-powerful number, because it can be written as 2¹⁸ + 6 + 4⁵ + 0 + 2²⁰ + 6⁷ + 2²⁰ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28653 + ... + 28744.

It is an arithmetic number, because the mean of its divisors is an integer number (516582).

2^2640262 is an apocalyptic number.

2640262 is a deficient number, since it is larger than the sum of its proper divisors (1492394).

2640262 is a wasteful number, since it uses less digits than its factorization.

2640262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57422.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2640262 is about 1624.8883038535. Note that the first 3 decimals coincide. The cubic root of 2640262 is about 138.2130364967.

The spelling of 2640262 in words is "two million, six hundred forty thousand, two hundred sixty-two".