2042451345 has 16 divisors (see below), whose sum is σ = 3565006272. Its totient is φ = 990279360.

The previous prime is 2042451343. The next prime is 2042451347. The reversal of 2042451345 is 5431542402.

It is an interprime number because it is at equal distance from previous prime (2042451343) and next prime (2042451347).

It is not a de Polignac number, because 2042451345 - 2¹ = 2042451343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2042451343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6189082 + ... + 6189411.

It is an arithmetic number, because the mean of its divisors is an integer number (222812892).

Almost surely, 2^2042451345 is an apocalyptic number.

It is an amenable number.

2042451345 is a deficient number, since it is larger than the sum of its proper divisors (1522554927).

2042451345 is a wasteful number, since it uses less digits than its factorization.

2042451345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12378512.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2042451345 is about 45193.4878605314. The cubic root of 2042451345 is about 1268.7729369857.

Adding to 2042451345 its reverse (5431542402), we get a palindrome (7473993747).

The spelling of 2042451345 in words is "two billion, forty-two million, four hundred fifty-one thousand, three hundred forty-five".