4278920038 has 4 divisors (see below), whose sum is σ = 6418380060. Its totient is φ = 2139460018.

The previous prime is 4278920027. The next prime is 4278920119. The reversal of 4278920038 is 8300298724.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 4278919976 and 4278920003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069730008 + ... + 1069730011.

It is an arithmetic number, because the mean of its divisors is an integer number (1604595015).

Almost surely, 2^4278920038 is an apocalyptic number.

4278920038 is a deficient number, since it is larger than the sum of its proper divisors (2139460022).

4278920038 is a wasteful number, since it uses less digits than its factorization.

4278920038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139460021.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 4278920038 is about 65413.4545640268. The cubic root of 4278920038 is about 1623.4717039952.

The spelling of 4278920038 in words is "four billion, two hundred seventy-eight million, nine hundred twenty thousand, thirty-eight".