1378065238 has 16 divisors (see below), whose sum is σ = 2285909136. Its totient is φ = 617811840.

The previous prime is 1378065223. The next prime is 1378065251. The reversal of 1378065238 is 8325608731.

It is a super-3 number, since 3×1378065238³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1378065194 and 1378065203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427431 + ... + 430642.

It is an arithmetic number, because the mean of its divisors is an integer number (142869321).

Almost surely, 2^1378065238 is an apocalyptic number.

1378065238 is a deficient number, since it is larger than the sum of its proper divisors (907843898).

1378065238 is a wasteful number, since it uses less digits than its factorization.

1378065238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858159.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 1378065238 is about 37122.3010870824. The cubic root of 1378065238 is about 1112.8157384843.

The spelling of 1378065238 in words is "one billion, three hundred seventy-eight million, sixty-five thousand, two hundred thirty-eight".