1868865048 has 40 divisors (see below), whose sum is σ = 5234554380. Its totient is φ = 622954800.

The previous prime is 1868865017. The next prime is 1868865049. The reversal of 1868865048 is 8405688681.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1868864985 and 1868865003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868865049) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1441378 + ... + 1442673.

Almost surely, 2^1868865048 is an apocalyptic number.

1868865048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1868865048 is an abundant number, since it is smaller than the sum of its proper divisors (3365689332).

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

1868865048 is a wasteful number, since it uses less digits than its factorization.

1868865048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884069 (or 2884056 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 54.

The square root of 1868865048 is about 43230.3718235224. The cubic root of 1868865048 is about 1231.7596705414.

The spelling of 1868865048 in words is "one billion, eight hundred sixty-eight million, eight hundred sixty-five thousand, forty-eight".