2238863739 has 16 divisors (see below), whose sum is σ = 3612284928.
Its totient is φ = 1204094592.
The previous prime is 2238863701. The next prime is 2238863743. The reversal of 2238863739 is 9373688322.
It is a happy number.
It is not a de Polignac number, because 2238863739 - 28 = 2238863483 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (51).
It is a junction number, because it is equal to n+sod(n) for n = 2238863691 and 2238863700.
It is not an unprimeable number, because it can be changed into a prime (2238863339) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3135307 + ... + 3136020.
It is an arithmetic number, because the mean of its divisors is an integer number (225767808).
Almost surely, 22238863739 is an apocalyptic number.
2238863739 is a deficient number, since it is larger than the sum of its proper divisors (1373421189).
2238863739 is a wasteful number, since it uses less digits than its factorization.
2238863739 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6271354.
The product of its digits is 2612736, while the sum is 51.
The square root of 2238863739 is about 47316.6327943991.
The cubic root of 2238863739 is about 1308.2052494497.
The spelling of 2238863739 in words is "two billion, two hundred thirty-eight million, eight hundred sixty-three thousand, seven hundred thirty-nine".