1944393 has 8 divisors (see below), whose sum is σ = 2828256. Its totient is φ = 1178400.

The previous prime is 1944389. The next prime is 1944401. The reversal of 1944393 is 3934491.

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

It is not a de Polignac number, because 1944393 - 2² = 1944389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 58921 = 1944393 / (1 + 9 + 4 + 4 + 3 + 9 + 3).

It is not an unprimeable number, because it can be changed into a prime (1944323) 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, 29428 + ... + 29493.

It is an arithmetic number, because the mean of its divisors is an integer number (353532).

2^1944393 is an apocalyptic number.

It is an amenable number.

1944393 is a deficient number, since it is larger than the sum of its proper divisors (883863).

1944393 is a wasteful number, since it uses less digits than its factorization.

1944393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58935.

The product of its digits is 11664, while the sum is 33.

The square root of 1944393 is about 1394.4149310732. The cubic root of 1944393 is about 124.8134390319.

The spelling of 1944393 in words is "one million, nine hundred forty-four thousand, three hundred ninety-three".