2109474 has 12 divisors (see below), whose sum is σ = 4570566. Its totient is φ = 703152.

The previous prime is 2109461. The next prime is 2109509. The reversal of 2109474 is 4749012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2082249 + 27225 = 1443^2 + 165^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58579 + ... + 58614.

2^2109474 is an apocalyptic number.

2109474 is an abundant number, since it is smaller than the sum of its proper divisors (2461092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2109474 is a wasteful number, since it uses less digits than its factorization.

2109474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117201 (or 117198 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2109474 is about 1452.4028366813. The cubic root of 2109474 is about 128.2502023411.

The spelling of 2109474 in words is "two million, one hundred nine thousand, four hundred seventy-four".