1920735 has 12 divisors (see below), whose sum is σ = 3329352. Its totient is φ = 1024368.

The previous prime is 1920731. The next prime is 1920739. The reversal of 1920735 is 5370291.

It is an interprime number because it is at equal distance from previous prime (1920731) and next prime (1920739).

It is not a de Polignac number, because 1920735 - 2² = 1920731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1920699 and 1920708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21297 + ... + 21386.

It is an arithmetic number, because the mean of its divisors is an integer number (277446).

2^1920735 is an apocalyptic number.

1920735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1920735 is a deficient number, since it is larger than the sum of its proper divisors (1408617).

1920735 is a wasteful number, since it uses less digits than its factorization.

1920735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42694 (or 42691 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1920735 is about 1385.9058409575. The cubic root of 1920735 is about 124.3051580474.

The spelling of 1920735 in words is "one million, nine hundred twenty thousand, seven hundred thirty-five".