1912906378 has 8 divisors (see below), whose sum is σ = 2917992960. Its totient is φ = 940242060.

The previous prime is 1912906363. The next prime is 1912906379. The reversal of 1912906378 is 8736092191.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1912906378³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1912906379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8105418 + ... + 8105653.

It is an arithmetic number, because the mean of its divisors is an integer number (364749120).

Almost surely, 2^1912906378 is an apocalyptic number.

1912906378 is a deficient number, since it is larger than the sum of its proper divisors (1005086582).

1912906378 is a wasteful number, since it uses less digits than its factorization.

1912906378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16211132.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 1912906378 is about 43736.7851813551. The cubic root of 1912906378 is about 1241.3604514398.

The spelling of 1912906378 in words is "one billion, nine hundred twelve million, nine hundred six thousand, three hundred seventy-eight".