2231970 has 64 divisors (see below), whose sum is σ = 5927040. Its totient is φ = 534528.

The previous prime is 2231941. The next prime is 2232017. The reversal of 2231970 is 791322.

It is a super-3 number, since 3×2231970³ = 33356948429599119000, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231970.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22962 + ... + 23058.

It is an arithmetic number, because the mean of its divisors is an integer number (92610).

2^2231970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2963520).

2231970 is an abundant number, since it is smaller than the sum of its proper divisors (3695070).

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

2231970 is a wasteful number, since it uses less digits than its factorization.

2231970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2231970 is about 1493.9779114833. The cubic root of 2231970 is about 130.6861160252.

The spelling of 2231970 in words is "two million, two hundred thirty-one thousand, nine hundred seventy".