2149670 has 8 divisors (see below), whose sum is σ = 3869424. Its totient is φ = 859864.

The previous prime is 2149661. The next prime is 2149681. The reversal of 2149670 is 769412.

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

It is a super-2 number, since 2×2149670² = 9242162217800, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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, 107474 + ... + 107493.

It is an arithmetic number, because the mean of its divisors is an integer number (483678).

2^2149670 is an apocalyptic number.

2149670 is a deficient number, since it is larger than the sum of its proper divisors (1719754).

2149670 is a wasteful number, since it uses less digits than its factorization.

2149670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214974.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2149670 is about 1466.1752964772. The cubic root of 2149670 is about 129.0596843380.

The spelling of 2149670 in words is "two million, one hundred forty-nine thousand, six hundred seventy".