2138630 has 16 divisors (see below), whose sum is σ = 4145904. Its totient is φ = 789600.

The previous prime is 2138629. The next prime is 2138657. The reversal of 2138630 is 368312.

It is a junction number, because it is equal to n+sod(n) for n = 2138596 and 2138605.

It is a congruent number.

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, 8096 + ... + 8355.

It is an arithmetic number, because the mean of its divisors is an integer number (259119).

2^2138630 is an apocalyptic number.

2138630 is a deficient number, since it is larger than the sum of its proper divisors (2007274).

2138630 is a wasteful number, since it uses less digits than its factorization.

2138630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16471.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2138630 is about 1462.4055525059. The cubic root of 2138630 is about 128.8383689683.

The spelling of 2138630 in words is "two million, one hundred thirty-eight thousand, six hundred thirty".