2389688784 has 80 divisors (see below), whose sum is σ = 7839200640. Its totient is φ = 682767360.

The previous prime is 2389688783. The next prime is 2389688797. The reversal of 2389688784 is 4878869832.

2389688784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2389688784² = 11421224968750797312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389688783) 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, 392097 + ... + 398144.

It is an arithmetic number, because the mean of its divisors is an integer number (97990008).

Almost surely, 2^2389688784 is an apocalyptic number.

2389688784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2389688784 is an abundant number, since it is smaller than the sum of its proper divisors (5449511856).

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

2389688784 is a wasteful number, since it uses less digits than its factorization.

2389688784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790265 (or 790253 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The square root of 2389688784 is about 48884.4431695811. The cubic root of 2389688784 is about 1336.9457399390.

The spelling of 2389688784 in words is "two billion, three hundred eighty-nine million, six hundred eighty-eight thousand, seven hundred eighty-four".