1866240002 has 16 divisors (see below), whose sum is σ = 3214576800. Its totient is φ = 803643840.

The previous prime is 1866239971. The next prime is 1866240007. The reversal of 1866240002 is 2000426681.

It is not an unprimeable number, because it can be changed into a prime (1866240007) 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 7 ways as a sum of consecutive naturals, for example, 2231927 + ... + 2232762.

It is an arithmetic number, because the mean of its divisors is an integer number (200911050).

Almost surely, 2^1866240002 is an apocalyptic number.

1866240002 is a deficient number, since it is larger than the sum of its proper divisors (1348336798).

1866240002 is a wasteful number, since it uses less digits than its factorization.

1866240002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464721.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1866240002 is about 43200.0000231481. Note that the first 4 decimals coincide. The cubic root of 1866240002 is about 1231.1826820470.

Adding to 1866240002 its reverse (2000426681), we get a palindrome (3866666683).

It can be divided in two parts, 186624000 and 2, that multiplied together give a cube (373248000 = 720³).

The spelling of 1866240002 in words is "one billion, eight hundred sixty-six million, two hundred forty thousand, two".