1913020 has 12 divisors (see below), whose sum is σ = 4017384. Its totient is φ = 765200.

The previous prime is 1913017. The next prime is 1913039. The reversal of 1913020 is 203191.

It is a junction number, because it is equal to n+sod(n) for n = 1912985 and 1913003.

It is a congruent number.

It is an unprimeable number.

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, 47806 + ... + 47845.

It is an arithmetic number, because the mean of its divisors is an integer number (334782).

2^1913020 is an apocalyptic number.

1913020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1913020 is an abundant number, since it is smaller than the sum of its proper divisors (2104364).

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

1913020 is a wasteful number, since it uses less digits than its factorization.

1913020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95660 (or 95658 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1913020 is about 1383.1196622129. The cubic root of 1913020 is about 124.1385028887.

The spelling of 1913020 in words is "one million, nine hundred thirteen thousand, twenty".