2138470 has 8 divisors (see below), whose sum is σ = 3849264. Its totient is φ = 855384.

The previous prime is 2138467. The next prime is 2138483. The reversal of 2138470 is 748312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106914 + ... + 106933.

It is an arithmetic number, because the mean of its divisors is an integer number (481158).

2^2138470 is an apocalyptic number.

2138470 is a deficient number, since it is larger than the sum of its proper divisors (1710794).

2138470 is a wasteful number, since it uses less digits than its factorization.

2138470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213854.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2138470 is about 1462.3508470952. The cubic root of 2138470 is about 128.8351559062.

The spelling of 2138470 in words is "two million, one hundred thirty-eight thousand, four hundred seventy".