1868448064 has 56 divisors (see below), whose sum is σ = 4340766528. Its totient is φ = 781224960.

The previous prime is 1868448041. The next prime is 1868448077. The reversal of 1868448064 is 4608448681.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 1868447999 and 1868448017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32494 + ... + 69229.

It is an arithmetic number, because the mean of its divisors is an integer number (77513688).

Almost surely, 2^1868448064 is an apocalyptic number.

1868448064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1868448064 is an abundant number, since it is smaller than the sum of its proper divisors (2472318464).

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

1868448064 is a wasteful number, since it uses less digits than its factorization.

1868448064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101783 (or 101773 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 49.

The square root of 1868448064 is about 43225.5487414561. The cubic root of 1868448064 is about 1231.6680530327.

The spelling of 1868448064 in words is "one billion, eight hundred sixty-eight million, four hundred forty-eight thousand, sixty-four".