1905948 has 36 divisors (see below), whose sum is σ = 5256888. Its totient is φ = 577440.

The previous prime is 1905923. The next prime is 1905979. The reversal of 1905948 is 8495091.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2011 + ... + 2802.

2^1905948 is an apocalyptic number.

1905948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1905948 is an abundant number, since it is smaller than the sum of its proper divisors (3350940).

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

1905948 is a wasteful number, since it uses less digits than its factorization.

1905948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4834 (or 4829 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1905948 is about 1380.5607556352. The cubic root of 1905948 is about 123.9853433943.

The spelling of 1905948 in words is "one million, nine hundred five thousand, nine hundred forty-eight".