1955904 has 56 divisors (see below), whose sum is σ = 5291328. Its totient is φ = 637440.

The previous prime is 1955893. The next prime is 1955939. The reversal of 1955904 is 4095591.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11629 + ... + 11795.

It is an arithmetic number, because the mean of its divisors is an integer number (94488).

2^1955904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1955904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2645664).

1955904 is an abundant number, since it is smaller than the sum of its proper divisors (3335424).

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

1955904 is a wasteful number, since it uses less digits than its factorization.

1955904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 1955904 is about 1398.5363777893. The cubic root of 1955904 is about 125.0592572375.

The spelling of 1955904 in words is "one million, nine hundred fifty-five thousand, nine hundred four".