2638670 has 8 divisors (see below), whose sum is σ = 4749624. Its totient is φ = 1055464.

The previous prime is 2638667. The next prime is 2638673. The reversal of 2638670 is 768362.

It is an interprime number because it is at equal distance from previous prime (2638667) and next prime (2638673).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131924 + ... + 131943.

It is an arithmetic number, because the mean of its divisors is an integer number (593703).

2^2638670 is an apocalyptic number.

2638670 is a deficient number, since it is larger than the sum of its proper divisors (2110954).

2638670 is a wasteful number, since it uses less digits than its factorization.

2638670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263874.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2638670 is about 1624.3983501592. The cubic root of 2638670 is about 138.1852514519.

The spelling of 2638670 in words is "two million, six hundred thirty-eight thousand, six hundred seventy".