2129598 has 32 divisors (see below), whose sum is σ = 4788000. Its totient is φ = 701568.

The previous prime is 2129597. The next prime is 2129599. The reversal of 2129598 is 8959212.

It is an interprime number because it is at equal distance from previous prime (2129597) and next prime (2129599).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129597) 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 15 ways as a sum of consecutive naturals, for example, 5928 + ... + 6276.

It is an arithmetic number, because the mean of its divisors is an integer number (149625).

2^2129598 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2129598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2394000).

2129598 is an abundant number, since it is smaller than the sum of its proper divisors (2658402).

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

2129598 is a wasteful number, since it uses less digits than its factorization.

2129598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 467 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2129598 is about 1459.3142225032. The cubic root of 2129598 is about 128.6567402056.

It can be divided in two parts, 2 and 129598, that added together give a square (129600 = 360²).

The spelling of 2129598 in words is "two million, one hundred twenty-nine thousand, five hundred ninety-eight".