8378949190 has 32 divisors (see below), whose sum is σ = 15247764000. Its totient is φ = 3314949888.

The previous prime is 8378949179. The next prime is 8378949191. The reversal of 8378949190 is 919498738.

It is a happy number.

It is a super-2 number, since 2×8378949190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8378949191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362706 + ... + 385114.

It is an arithmetic number, because the mean of its divisors is an integer number (476492625).

Almost surely, 2^8378949190 is an apocalyptic number.

8378949190 is a deficient number, since it is larger than the sum of its proper divisors (6868814810).

8378949190 is a wasteful number, since it uses less digits than its factorization.

8378949190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22824.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The square root of 8378949190 is about 91536.6002755182. The cubic root of 8378949190 is about 2031.0932005639.

The spelling of 8378949190 in words is "eight billion, three hundred seventy-eight million, nine hundred forty-nine thousand, one hundred ninety".