2638730 has 16 divisors (see below), whose sum is σ = 4769280. Its totient is φ = 1051152.

The previous prime is 2638717. The next prime is 2638747. The reversal of 2638730 is 378362.

It is a junction number, because it is equal to n+sod(n) for n = 2638693 and 2638702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3311 + ... + 4029.

It is an arithmetic number, because the mean of its divisors is an integer number (298080).

2^2638730 is an apocalyptic number.

2638730 is a deficient number, since it is larger than the sum of its proper divisors (2130550).

2638730 is a wasteful number, since it uses less digits than its factorization.

2638730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 2638730 is about 1624.4168184305. The cubic root of 2638730 is about 138.1862988296.

The spelling of 2638730 in words is "two million, six hundred thirty-eight thousand, seven hundred thirty".