1926890 has 16 divisors (see below), whose sum is σ = 3964032. Its totient is φ = 660624.

The previous prime is 1926863. The next prime is 1926893. The reversal of 1926890 is 986291.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1926890.

It is not an unprimeable number, because it can be changed into a prime (1926893) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13694 + ... + 13833.

It is an arithmetic number, because the mean of its divisors is an integer number (247752).

2^1926890 is an apocalyptic number.

1926890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1926890 is an abundant number, since it is smaller than the sum of its proper divisors (2037142).

1926890 is a wasteful number, since it uses less digits than its factorization.

1926890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27541.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1926890 is about 1388.1246341737. The cubic root of 1926890 is about 124.4377951970.

The spelling of 1926890 in words is "one million, nine hundred twenty-six thousand, eight hundred ninety".