1920430 has 8 divisors (see below), whose sum is σ = 3456792. Its totient is φ = 768168.

The previous prime is 1920427. The next prime is 1920433. The reversal of 1920430 is 340291.

It is an interprime number because it is at equal distance from previous prime (1920427) and next prime (1920433).

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1920398 and 1920407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96012 + ... + 96031.

It is an arithmetic number, because the mean of its divisors is an integer number (432099).

2^1920430 is an apocalyptic number.

1920430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1920430 is a deficient number, since it is larger than the sum of its proper divisors (1536362).

1920430 is a wasteful number, since it uses less digits than its factorization.

1920430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192050.

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

The square root of 1920430 is about 1385.7958002534. The cubic root of 1920430 is about 124.2985780871.

It can be divided in two parts, 19 and 20430, that added together give a square (20449 = 143²).

The spelling of 1920430 in words is "one million, nine hundred twenty thousand, four hundred thirty".