1961244 has 36 divisors (see below), whose sum is σ = 5003544. Its totient is φ = 647712.

The previous prime is 1961231. The next prime is 1961249. The reversal of 1961244 is 4421691.

1961244 is a `hidden beast` number, since 1 + 9 + 612 + 44 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961249) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5479 + ... + 5825.

2^1961244 is an apocalyptic number.

It is an amenable number.

1961244 is an abundant number, since it is smaller than the sum of its proper divisors (3042300).

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

1961244 is a wasteful number, since it uses less digits than its factorization.

1961244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 509 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1961244 is about 1400.4442152403. Note that the first 3 decimals coincide. The cubic root of 1961244 is about 125.1729658854.

The spelling of 1961244 in words is "one million, nine hundred sixty-one thousand, two hundred forty-four".