1948774 has 4 divisors (see below), whose sum is σ = 2923164. Its totient is φ = 974386.

The previous prime is 1948763. The next prime is 1948777. The reversal of 1948774 is 4778491.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948777) 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 as a sum of consecutive naturals, namely, 487192 + ... + 487195.

It is an arithmetic number, because the mean of its divisors is an integer number (730791).

2^1948774 is an apocalyptic number.

1948774 is a deficient number, since it is larger than the sum of its proper divisors (974390).

1948774 is an equidigital number, since it uses as much as digits as its factorization.

1948774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974389.

The product of its digits is 56448, while the sum is 40.

The square root of 1948774 is about 1395.9849569390. The cubic root of 1948774 is about 124.9071096548.

The spelling of 1948774 in words is "one million, nine hundred forty-eight thousand, seven hundred seventy-four".