1982944461 has 8 divisors (see below), whose sum is σ = 2646540000. Its totient is φ = 1320655952.

The previous prime is 1982944433. The next prime is 1982944487. The reversal of 1982944461 is 1644492891.

1982944461 = T₂₅₈ + T₂₅₉ + ... + T₂₂₈₃.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1982944461 - 2¹⁰ = 1982943437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1982944461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982940461) 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, 323211 + ... + 329288.

It is an arithmetic number, because the mean of its divisors is an integer number (330817500).

Almost surely, 2^1982944461 is an apocalyptic number.

It is an amenable number.

1982944461 is a deficient number, since it is larger than the sum of its proper divisors (663595539).

1982944461 is a wasteful number, since it uses less digits than its factorization.

1982944461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653515.

The product of its digits is 497664, while the sum is 48.

The square root of 1982944461 is about 44530.2645512016. The cubic root of 1982944461 is about 1256.3293820583.

The spelling of 1982944461 in words is "one billion, nine hundred eighty-two million, nine hundred forty-four thousand, four hundred sixty-one".