2102451982 has 32 divisors (see below), whose sum is σ = 3372171264. Its totient is φ = 979670400.

The previous prime is 2102451971. The next prime is 2102451991. The reversal of 2102451982 is 2891542012.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1707307 + ... + 1708537.

It is an arithmetic number, because the mean of its divisors is an integer number (105380352).

Almost surely, 2^2102451982 is an apocalyptic number.

2102451982 is a deficient number, since it is larger than the sum of its proper divisors (1269719282).

2102451982 is a wasteful number, since it uses less digits than its factorization.

2102451982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2102451982 is about 45852.5024616978. The cubic root of 2102451982 is about 1281.0773770148.

Adding to 2102451982 its reverse (2891542012), we get a palindrome (4993993994).

The spelling of 2102451982 in words is "two billion, one hundred two million, four hundred fifty-one thousand, nine hundred eighty-two".