1914445 has 8 divisors (see below), whose sum is σ = 2474136. Its totient is φ = 1413696.

The previous prime is 1914443. The next prime is 1914457. The reversal of 1914445 is 5444191.

It can be written as a sum of positive squares in 4 ways, for example, as 26569 + 1887876 = 163^2 + 1374^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1914445 - 2¹ = 1914443 is a prime.

It is a Duffinian number.

1914445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914443) 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, 14662 + ... + 14791.

It is an arithmetic number, because the mean of its divisors is an integer number (309267).

2^1914445 is an apocalyptic number.

It is an amenable number.

1914445 is a deficient number, since it is larger than the sum of its proper divisors (559691).

1914445 is a wasteful number, since it uses less digits than its factorization.

1914445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29471.

The product of its digits is 2880, while the sum is 28.

The square root of 1914445 is about 1383.6347061273. The cubic root of 1914445 is about 124.1693186427.

The spelling of 1914445 in words is "one million, nine hundred fourteen thousand, four hundred forty-five".