3782378172 has 24 divisors (see below), whose sum is σ = 8949854592. Its totient is φ = 1243034800.

The previous prime is 3782378111. The next prime is 3782378183. The reversal of 3782378172 is 2718732873.

It is a happy number.

It is a super-3 number, since 3×3782378172³ (a number of 30 digits) contains 333 as substring.

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, 2218854 + ... + 2220557.

It is an arithmetic number, because the mean of its divisors is an integer number (372910608).

Almost surely, 2^3782378172 is an apocalyptic number.

It is an amenable number.

3782378172 is an abundant number, since it is smaller than the sum of its proper divisors (5167476420).

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

3782378172 is a wasteful number, since it uses less digits than its factorization.

3782378172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439489 (or 4439487 counting only the distinct ones).

The product of its digits is 790272, while the sum is 48.

The square root of 3782378172 is about 61501.0420399525. The cubic root of 3782378172 is about 1558.0748457746.

The spelling of 3782378172 in words is "three billion, seven hundred eighty-two million, three hundred seventy-eight thousand, one hundred seventy-two".