378791712 has 72 divisors (see below), whose sum is σ = 1160061084. Its totient is φ = 116550144.

The previous prime is 378791629. The next prime is 378791731. The reversal of 378791712 is 217197873.

It can be written as a sum of positive squares in 2 ways, for example, as 367258896 + 11532816 = 19164^2 + 3396^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×378791712² = 286966322159781888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46843 + ... + 54330.

Almost surely, 2^378791712 is an apocalyptic number.

378791712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

378791712 is an abundant number, since it is smaller than the sum of its proper divisors (781269372).

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

378791712 is a wasteful number, since it uses less digits than its factorization.

378791712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101202 (or 101191 counting only the distinct ones).

The product of its digits is 148176, while the sum is 45.

The square root of 378791712 is about 19462.5720807914. The cubic root of 378791712 is about 723.5471257914.

The spelling of 378791712 in words is "three hundred seventy-eight million, seven hundred ninety-one thousand, seven hundred twelve".