1948720 has 20 divisors (see below), whose sum is σ = 4530960. Its totient is φ = 779456.

The previous prime is 1948703. The next prime is 1948729. The reversal of 1948720 is 278491.

It is a tau number, because it is divible by the number of its divisors (20).

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1948729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12100 + ... + 12259.

It is an arithmetic number, because the mean of its divisors is an integer number (226548).

2^1948720 is an apocalyptic number.

1948720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1948720 is an abundant number, since it is smaller than the sum of its proper divisors (2582240).

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

1948720 is a wasteful number, since it uses less digits than its factorization.

1948720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24372 (or 24366 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1948720 is about 1395.9656156224. The cubic root of 1948720 is about 124.9059559301.

The spelling of 1948720 in words is "one million, nine hundred forty-eight thousand, seven hundred twenty".