2638330 has 16 divisors (see below), whose sum is σ = 4955904. Its totient is φ = 1009360.

The previous prime is 2638327. The next prime is 2638331. The reversal of 2638330 is 338362.

It is a junction number, because it is equal to n+sod(n) for n = 2638295 and 2638304.

It is not an unprimeable number, because it can be changed into a prime (2638331) 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, 5506 + ... + 5965.

It is an arithmetic number, because the mean of its divisors is an integer number (309744).

2^2638330 is an apocalyptic number.

2638330 is a deficient number, since it is larger than the sum of its proper divisors (2317574).

2638330 is a wasteful number, since it uses less digits than its factorization.

2638330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11501.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2638330 is about 1624.2936926554. The cubic root of 2638330 is about 138.1793160117.

Subtracting from 2638330 its reverse (338362), we obtain a cube (2299968 = 132³).

It can be divided in two parts, 2638 and 330, that multiplied together give a triangular number (870540 = T₁₃₁₉).

The spelling of 2638330 in words is "two million, six hundred thirty-eight thousand, three hundred thirty".