2193390 has 24 divisors (see below), whose sum is σ = 5703048. Its totient is φ = 584880.

The previous prime is 2193383. The next prime is 2193413. The reversal of 2193390 is 933912.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 12096 + ... + 12275.

It is an arithmetic number, because the mean of its divisors is an integer number (237627).

2^2193390 is an apocalyptic number.

2193390 is an abundant number, since it is smaller than the sum of its proper divisors (3509658).

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

2193390 is a wasteful number, since it uses less digits than its factorization.

2193390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24384 (or 24381 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 2193390 is about 1481.0097906496. The cubic root of 2193390 is about 129.9287578094.

It can be divided in two parts, 21 and 93390, that multiplied together give a triangular number (1961190 = T₁₉₈₀).

The spelling of 2193390 in words is "two million, one hundred ninety-three thousand, three hundred ninety".