1642300645 has 16 divisors (see below), whose sum is σ = 2003581440. Its totient is φ = 1292054400.

The previous prime is 1642300643. The next prime is 1642300651. The reversal of 1642300645 is 5460032461.

It is not a de Polignac number, because 1642300645 - 2¹ = 1642300643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642300643) 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, 139540 + ... + 150850.

It is an arithmetic number, because the mean of its divisors is an integer number (125223840).

Almost surely, 2^1642300645 is an apocalyptic number.

It is an amenable number.

1642300645 is a deficient number, since it is larger than the sum of its proper divisors (361280795).

1642300645 is a wasteful number, since it uses less digits than its factorization.

1642300645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11796.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1642300645 is about 40525.3086971586. The cubic root of 1642300645 is about 1179.8248914245.

The spelling of 1642300645 in words is "one billion, six hundred forty-two million, three hundred thousand, six hundred forty-five".