1969944 has 32 divisors (see below), whose sum is σ = 4992000. Its totient is φ = 647712.

The previous prime is 1969921. The next prime is 1969949. The reversal of 1969944 is 4499691.

1969944 = T₁₉₇ + T₁₉₈ + ... + T₂₆₈.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1969896 and 1969905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1377 + ... + 2415.

It is an arithmetic number, because the mean of its divisors is an integer number (156000).

2^1969944 is an apocalyptic number.

It is an amenable number.

1969944 is an abundant number, since it is smaller than the sum of its proper divisors (3022056).

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

1969944 is a wasteful number, since it uses less digits than its factorization.

1969944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1123 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 1969944 is about 1403.5469354461. The cubic root of 1969944 is about 125.3577803023.

The spelling of 1969944 in words is "one million, nine hundred sixty-nine thousand, nine hundred forty-four".