2159630 has 32 divisors (see below), whose sum is σ = 4393440. Its totient is φ = 757120.

The previous prime is 2159627. The next prime is 2159639. The reversal of 2159630 is 369512.

It is a self number, because there is not a number n which added to its sum of digits gives 2159630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2852 + ... + 3528.

It is an arithmetic number, because the mean of its divisors is an integer number (137295).

2^2159630 is an apocalyptic number.

2159630 is an abundant number, since it is smaller than the sum of its proper divisors (2233810).

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

2159630 is a wasteful number, since it uses less digits than its factorization.

2159630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2159630 is about 1469.5679637227. The cubic root of 2159630 is about 129.2587000468.

The spelling of 2159630 in words is "two million, one hundred fifty-nine thousand, six hundred thirty".