1930880 has 64 divisors (see below), whose sum is σ = 5287680. Its totient is φ = 660480.

The previous prime is 1930879. The next prime is 1930883. The reversal of 1930880 is 880391.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (1930883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4265 + ... + 4695.

It is an arithmetic number, because the mean of its divisors is an integer number (82620).

2^1930880 is an apocalyptic number.

1930880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1930880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2643840).

1930880 is an abundant number, since it is smaller than the sum of its proper divisors (3356800).

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

1930880 is an equidigital number, since it uses as much as digits as its factorization.

1930880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1930880 is about 1389.5610817809. The cubic root of 1930880 is about 124.5236268552.

The spelling of 1930880 in words is "one million, nine hundred thirty thousand, eight hundred eighty".