1963444 has 12 divisors (see below), whose sum is σ = 3926944. Its totient is φ = 841464.

The previous prime is 1963433. The next prime is 1963457. The reversal of 1963444 is 4443691.

1963444 is an admirable number.

It is a super-2 number, since 2×1963444² = 7710224682272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35034 + ... + 35089.

2^1963444 is an apocalyptic number.

1963444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1963444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1963444 is a wasteful number, since it uses less digits than its factorization.

1963444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70134 (or 70132 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 1963444 is about 1401.2294601528. The cubic root of 1963444 is about 125.2197521123.

The spelling of 1963444 in words is "one million, nine hundred sixty-three thousand, four hundred forty-four".