1955940 has 48 divisors (see below), whose sum is σ = 6260352. Its totient is φ = 446976.

The previous prime is 1955939. The next prime is 1955957. The reversal of 1955940 is 495591.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1909 + ... + 2748.

It is an arithmetic number, because the mean of its divisors is an integer number (130424).

2^1955940 is an apocalyptic number.

1955940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1955940 is an abundant number, since it is smaller than the sum of its proper divisors (4304412).

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

1955940 is a wasteful number, since it uses less digits than its factorization.

1955940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676 (or 4674 counting only the distinct ones).

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

The square root of 1955940 is about 1398.5492483284. The cubic root of 1955940 is about 125.0600245052.

The spelling of 1955940 in words is "one million, nine hundred fifty-five thousand, nine hundred forty".