1920849 has 24 divisors (see below), whose sum is σ = 3036960. Its totient is φ = 1076544.

The previous prime is 1920839. The next prime is 1920851. The reversal of 1920849 is 9480291.

It is not a de Polignac number, because 1920849 - 2⁵ = 1920817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1920839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10642 + ... + 10820.

It is an arithmetic number, because the mean of its divisors is an integer number (126540).

2^1920849 is an apocalyptic number.

It is an amenable number.

1920849 is a deficient number, since it is larger than the sum of its proper divisors (1116111).

1920849 is a wasteful number, since it uses less digits than its factorization.

1920849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1920849 is about 1385.9469686824. The cubic root of 1920849 is about 124.3076172635.

It can be divided in two parts, 19208 and 49, that multiplied together give a cube (941192 = 98³).

The spelling of 1920849 in words is "one million, nine hundred twenty thousand, eight hundred forty-nine".