2129874 has 8 divisors (see below), whose sum is σ = 4259760. Its totient is φ = 709956.

The previous prime is 2129867. The next prime is 2129887. The reversal of 2129874 is 4789212.

It is a happy number.

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

2129874 is an admirable number.

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

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, 177484 + ... + 177495.

It is an arithmetic number, because the mean of its divisors is an integer number (532470).

2^2129874 is an apocalyptic number.

2129874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2129874 is a wasteful number, since it uses less digits than its factorization.

2129874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354984.

The product of its digits is 8064, while the sum is 33.

The square root of 2129874 is about 1459.4087844055. The cubic root of 2129874 is about 128.6622980193.

It can be divided in two parts, 2129 and 874, that added together give a palindrome (3003).

The spelling of 2129874 in words is "two million, one hundred twenty-nine thousand, eight hundred seventy-four".