2088390 has 32 divisors (see below), whose sum is σ = 5091840. Its totient is φ = 548064.

The previous prime is 2088367. The next prime is 2088403. The reversal of 2088390 is 938802.

It is a super-2 number, since 2×2088390² = 8722745584200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491 + ... + 2529.

It is an arithmetic number, because the mean of its divisors is an integer number (159120).

2^2088390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2088390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2545920).

2088390 is an abundant number, since it is smaller than the sum of its proper divisors (3003450).

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

2088390 is a wasteful number, since it uses less digits than its factorization.

2088390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2088390 is about 1445.1262920589. The cubic root of 2088390 is about 127.8214878116.

It can be divided in two parts, 20 and 88390, that added together give a triangular number (88410 = T₄₂₀).

The spelling of 2088390 in words is "two million, eighty-eight thousand, three hundred ninety".