1916982720 has 112 divisors (see below), whose sum is σ = 6762719520. Its totient is φ = 511193088.

The previous prime is 1916982709. The next prime is 1916982731. The reversal of 1916982720 is 272896191.

It is an interprime number because it is at equal distance from previous prime (1916982709) and next prime (1916982731).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 102297 + ... + 119576.

Almost surely, 2^1916982720 is an apocalyptic number.

1916982720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1916982720 is an abundant number, since it is smaller than the sum of its proper divisors (4845736800).

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

1916982720 is a wasteful number, since it uses less digits than its factorization.

1916982720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221899 (or 221883 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 1916982720 is about 43783.3612231861. The cubic root of 1916982720 is about 1242.2415922475.

The spelling of 1916982720 in words is "one billion, nine hundred sixteen million, nine hundred eighty-two thousand, seven hundred twenty".