1904772 has 12 divisors (see below), whose sum is σ = 4444496. Its totient is φ = 634920.

The previous prime is 1904761. The next prime is 1904803. The reversal of 1904772 is 2774091.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79354 + ... + 79377.

2^1904772 is an apocalyptic number.

1904772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1904772 is an abundant number, since it is smaller than the sum of its proper divisors (2539724).

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

1904772 is a wasteful number, since it uses less digits than its factorization.

1904772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158738 (or 158736 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 1904772 is about 1380.1347760273. The cubic root of 1904772 is about 123.9598378432.

The spelling of 1904772 in words is "one million, nine hundred four thousand, seven hundred seventy-two".