2042451516 has 36 divisors (see below), whose sum is σ = 5543798568. Its totient is φ = 583557408.

The previous prime is 2042451511. The next prime is 2042451547. The reversal of 2042451516 is 6151542402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042451511) 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 11 ways as a sum of consecutive naturals, for example, 1736191 + ... + 1737366.

Almost surely, 2^2042451516 is an apocalyptic number.

It is an amenable number.

2042451516 is an abundant number, since it is smaller than the sum of its proper divisors (3501347052).

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

2042451516 is a wasteful number, since it uses less digits than its factorization.

2042451516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473578 (or 3473569 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2042451516 is about 45193.4897523969. The cubic root of 2042451516 is about 1268.7729723942.

Adding to 2042451516 its reverse (6151542402), we get a palindrome (8193993918).

It can be divided in two parts, 204245 and 1516, that added together give a triangular number (205761 = T₆₄₁).

The spelling of 2042451516 in words is "two billion, forty-two million, four hundred fifty-one thousand, five hundred sixteen".