1944430 has 8 divisors (see below), whose sum is σ = 3499992. Its totient is φ = 777768.

The previous prime is 1944401. The next prime is 1944457. The reversal of 1944430 is 344491.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1944395 and 1944404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97212 + ... + 97231.

It is an arithmetic number, because the mean of its divisors is an integer number (437499).

2^1944430 is an apocalyptic number.

1944430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1944430 is a deficient number, since it is larger than the sum of its proper divisors (1555562).

1944430 is a wasteful number, since it uses less digits than its factorization.

1944430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194450.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1944430 is about 1394.4281982232. The cubic root of 1944430 is about 124.8142307216.

It can be divided in two parts, 194 and 4430, that added together give a square (4624 = 68²).

The spelling of 1944430 in words is "one million, nine hundred forty-four thousand, four hundred thirty".