1904994 has 48 divisors (see below), whose sum is σ = 5084352. Its totient is φ = 501984.

The previous prime is 1904977. The next prime is 1904999. The reversal of 1904994 is 4994091.

It is not an unprimeable number, because it can be changed into a prime (1904999) 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, 1057 + ... + 2219.

It is an arithmetic number, because the mean of its divisors is an integer number (105924).

2^1904994 is an apocalyptic number.

1904994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1904994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2542176).

1904994 is an abundant number, since it is smaller than the sum of its proper divisors (3179358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1904994 is a wasteful number, since it uses less digits than its factorization.

1904994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1904994 is about 1380.2152006118. The cubic root of 1904994 is about 123.9646534703.

It can be divided in two parts, 190 and 4994, that added together give a square (5184 = 72²).

The spelling of 1904994 in words is "one million, nine hundred four thousand, nine hundred ninety-four".