1930345 has 8 divisors (see below), whose sum is σ = 2354760. Its totient is φ = 1518720.

The previous prime is 1930309. The next prime is 1930349. The reversal of 1930345 is 5430391.

It can be written as a sum of positive squares in 4 ways, for example, as 47961 + 1882384 = 219^2 + 1372^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1930345 - 2¹³ = 1922153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930349) 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, 2860 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (294345).

2^1930345 is an apocalyptic number.

It is an amenable number.

1930345 is a deficient number, since it is larger than the sum of its proper divisors (424415).

1930345 is an equidigital number, since it uses as much as digits as its factorization.

1930345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6395.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1930345 is about 1389.3685616135. The cubic root of 1930345 is about 124.5121249676.

The spelling of 1930345 in words is "one million, nine hundred thirty thousand, three hundred forty-five".