1926990 has 96 divisors (see below), whose sum is σ = 5687136. Its totient is φ = 466560.

The previous prime is 1926973. The next prime is 1927007. The reversal of 1926990 is 996291.

It is an interprime number because it is at equal distance from previous prime (1926973) and next prime (1927007).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31560 + ... + 31620.

It is an arithmetic number, because the mean of its divisors is an integer number (59241).

2^1926990 is an apocalyptic number.

1926990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1926990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2843568).

1926990 is an abundant number, since it is smaller than the sum of its proper divisors (3760146).

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

1926990 is a wasteful number, since it uses less digits than its factorization.

1926990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 1926990 is about 1388.1606535268. The cubic root of 1926990 is about 124.4399478132.

It can be divided in two parts, 1926 and 990, that added together give a square (2916 = 54²).

The spelling of 1926990 in words is "one million, nine hundred twenty-six thousand, nine hundred ninety".