1863880480 has 96 divisors (see below), whose sum is σ = 5490011520. Its totient is φ = 580945920.

The previous prime is 1863880477. The next prime is 1863880483. The reversal of 1863880480 is 840883681.

It is an interprime number because it is at equal distance from previous prime (1863880477) and next prime (1863880483).

It is a self number, because there is not a number n which added to its sum of digits gives 1863880480.

It is not an unprimeable number, because it can be changed into a prime (1863880483) 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, 63325 + ... + 87964.

It is an arithmetic number, because the mean of its divisors is an integer number (57187620).

Almost surely, 2^1863880480 is an apocalyptic number.

1863880480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1863880480 is an abundant number, since it is smaller than the sum of its proper divisors (3626131040).

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

1863880480 is a wasteful number, since it uses less digits than its factorization.

1863880480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151322 (or 151314 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 1863880480 is about 43172.6821033857. The cubic root of 1863880480 is about 1230.6635941546.

The spelling of 1863880480 in words is "one billion, eight hundred sixty-three million, eight hundred eighty thousand, four hundred eighty".