2235690 has 24 divisors (see below), whose sum is σ = 5813028. Its totient is φ = 596160.

The previous prime is 2235683. The next prime is 2235707. The reversal of 2235690 is 965322.

It can be written as a sum of positive squares in 2 ways, for example, as 1996569 + 239121 = 1413^2 + 489^2 .

It is a super-2 number, since 2×2235690² = 9996619552200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12331 + ... + 12510.

2^2235690 is an apocalyptic number.

2235690 is an abundant number, since it is smaller than the sum of its proper divisors (3577338).

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

2235690 is a wasteful number, since it uses less digits than its factorization.

2235690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24854 (or 24851 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 2235690 is about 1495.2223914856. Note that the first 3 decimals coincide. The cubic root of 2235690 is about 130.7586800999.

The spelling of 2235690 in words is "two million, two hundred thirty-five thousand, six hundred ninety".