2170630 has 32 divisors (see below), whose sum is σ = 4872960. Its totient is φ = 676320.

The previous prime is 2170627. The next prime is 2170639. The reversal of 2170630 is 360712.

2170630 = T₂₅₃ + T₂₅₄ + ... + T₃₀₇.

It is a junction number, because it is equal to n+sod(n) for n = 2170598 and 2170607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170639) 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, 640 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (152280).

2^2170630 is an apocalyptic number.

2170630 is an abundant number, since it is smaller than the sum of its proper divisors (2702330).

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

2170630 is a wasteful number, since it uses less digits than its factorization.

2170630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 2170630 is about 1473.3058066810. The cubic root of 2170630 is about 129.4777867218.

It can be divided in two parts, 21706 and 30, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 2170630 in words is "two million, one hundred seventy thousand, six hundred thirty".