2102343078 has 64 divisors (see below), whose sum is σ = 4675014144. Its totient is φ = 624960000.

The previous prime is 2102343073. The next prime is 2102343079. The reversal of 2102343078 is 8703432012.

It is a super-2 number, since 2×2102343078² = 8839692835229028168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102343073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 751863 + ... + 754653.

It is an arithmetic number, because the mean of its divisors is an integer number (73047096).

Almost surely, 2^2102343078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102343078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2337507072).

2102343078 is an abundant number, since it is smaller than the sum of its proper divisors (2572671066).

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

2102343078 is a wasteful number, since it uses less digits than its factorization.

2102343078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3021.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2102343078 is about 45851.3148993570. The cubic root of 2102343078 is about 1281.0552573087.

It can be divided in two parts, 210234 and 3078, that added together give a palindrome (213312).

The spelling of 2102343078 in words is "two billion, one hundred two million, three hundred forty-three thousand, seventy-eight".