2129402 has 16 divisors (see below), whose sum is σ = 3513024. Its totient is φ = 960000.

The previous prime is 2129401. The next prime is 2129419. The reversal of 2129402 is 2049212.

It is not an unprimeable number, because it can be changed into a prime (2129401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3002 + ... + 3642.

It is an arithmetic number, because the mean of its divisors is an integer number (219564).

2^2129402 is an apocalyptic number.

2129402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2129402 is a deficient number, since it is larger than the sum of its proper divisors (1383622).

2129402 is a wasteful number, since it uses less digits than its factorization.

2129402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2129402 is about 1459.2470661269. The cubic root of 2129402 is about 128.6527930609.

The spelling of 2129402 in words is "two million, one hundred twenty-nine thousand, four hundred two".