1939956 has 24 divisors (see below), whose sum is σ = 4638144. Its totient is φ = 630720.

The previous prime is 1939939. The next prime is 1939961. The reversal of 1939956 is 6599391.

It is a d-powerful number, because it can be written as 1 + 9² + 3¹³ + 9⁴ + 9⁵ + 5 + 6⁷ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1480 + ... + 2463.

It is an arithmetic number, because the mean of its divisors is an integer number (193256).

2^1939956 is an apocalyptic number.

It is an amenable number.

1939956 is an abundant number, since it is smaller than the sum of its proper divisors (2698188).

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

1939956 is a wasteful number, since it uses less digits than its factorization.

1939956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991 (or 3989 counting only the distinct ones).

The product of its digits is 65610, while the sum is 42.

The square root of 1939956 is about 1392.8230325494. The cubic root of 1939956 is about 124.7184275452.

The spelling of 1939956 in words is "one million, nine hundred thirty-nine thousand, nine hundred fifty-six".