1981962010 has 64 divisors (see below), whose sum is σ = 4302305280. Its totient is φ = 642185280.

The previous prime is 1981961999. The next prime is 1981962019. The reversal of 1981962010 is 102691891.

It is not an unprimeable number, because it can be changed into a prime (1981962019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 619515 + ... + 622705.

It is an arithmetic number, because the mean of its divisors is an integer number (67223520).

Almost surely, 2^1981962010 is an apocalyptic number.

1981962010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1981962010 is an abundant number, since it is smaller than the sum of its proper divisors (2320343270).

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

1981962010 is a wasteful number, since it uses less digits than its factorization.

1981962010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691.

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 1981962010 is about 44519.2319116132. The cubic root of 1981962010 is about 1256.1218647392.

The spelling of 1981962010 in words is "one billion, nine hundred eighty-one million, nine hundred sixty-two thousand, ten".