2081915402 has 8 divisors (see below), whose sum is σ = 3568997856. Its totient is φ = 892249452.

The previous prime is 2081915401. The next prime is 2081915417. The reversal of 2081915402 is 2045191802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2081915401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 74354108 + ... + 74354135.

It is an arithmetic number, because the mean of its divisors is an integer number (446124732).

Almost surely, 2^2081915402 is an apocalyptic number.

2081915402 is a deficient number, since it is larger than the sum of its proper divisors (1487082454).

2081915402 is a wasteful number, since it uses less digits than its factorization.

2081915402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148708252.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 2081915402 is about 45628.0111554295. The cubic root of 2081915402 is about 1276.8925684537.

Subtracting from 2081915402 its reverse (2045191802), we obtain a square (36723600 = 6060²).

The spelling of 2081915402 in words is "two billion, eighty-one million, nine hundred fifteen thousand, four hundred two".