1930420 has 24 divisors (see below), whose sum is σ = 4080384. Its totient is φ = 767136.

The previous prime is 1930417. The next prime is 1930427. The reversal of 1930420 is 240391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930427) 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, 5077 + ... + 5443.

It is an arithmetic number, because the mean of its divisors is an integer number (170016).

2^1930420 is an apocalyptic number.

1930420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1930420 is an abundant number, since it is smaller than the sum of its proper divisors (2149964).

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

1930420 is a wasteful number, since it uses less digits than its factorization.

1930420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1930420 is about 1389.3955520297. The cubic root of 1930420 is about 124.5137375098.

The spelling of 1930420 in words is "one million, nine hundred thirty thousand, four hundred twenty".