2642263 has 8 divisors (see below), whose sum is σ = 2969568. Its totient is φ = 2332704.

The previous prime is 2642257. The next prime is 2642287. The reversal of 2642263 is 3622462.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2642263 - 2⁵ = 2642231 is a prime.

It is a super-2 number, since 2×2642263² = 13963107522338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4120 + ... + 4717.

It is an arithmetic number, because the mean of its divisors is an integer number (371196).

2^2642263 is an apocalyptic number.

2642263 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2642263 is a deficient number, since it is larger than the sum of its proper divisors (327305).

2642263 is a wasteful number, since it uses less digits than its factorization.

2642263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873.

The product of its digits is 3456, while the sum is 25.

The square root of 2642263 is about 1625.5039218655. The cubic root of 2642263 is about 138.2479439475.

The spelling of 2642263 in words is "two million, six hundred forty-two thousand, two hundred sixty-three".