1921050 has 48 divisors (see below), whose sum is σ = 5297280. Its totient is φ = 511920.

The previous prime is 1921037. The next prime is 1921063. The reversal of 1921050 is 501291.

1921050 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (1921037) and next prime (1921063).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 639 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (110360).

2^1921050 is an apocalyptic number.

1921050 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 1921050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2648640).

1921050 is an abundant number, since it is smaller than the sum of its proper divisors (3376230).

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

1921050 is a wasteful number, since it uses less digits than its factorization.

1921050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1921050 is about 1386.0194803826. The cubic root of 1921050 is about 124.3119530129.

The spelling of 1921050 in words is "one million, nine hundred twenty-one thousand, fifty".