1984457101 has 8 divisors (see below), whose sum is σ = 2171827008. Its totient is φ = 1798248000.

The previous prime is 1984457099. The next prime is 1984457117. The reversal of 1984457101 is 1017544891.

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 1984457101 - 2¹ = 1984457099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984457401) 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, 286620 + ... + 293461.

It is an arithmetic number, because the mean of its divisors is an integer number (271478376).

Almost surely, 2^1984457101 is an apocalyptic number.

1984457101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1984457101 is a deficient number, since it is larger than the sum of its proper divisors (187369907).

1984457101 is a wasteful number, since it uses less digits than its factorization.

1984457101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580403.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 1984457101 is about 44547.2457173280. The cubic root of 1984457101 is about 1256.6487541001.

The spelling of 1984457101 in words is "one billion, nine hundred eighty-four million, four hundred fifty-seven thousand, one hundred one".