378143712 has 72 divisors (see below), whose sum is σ = 1091451816. Its totient is φ = 124160256.

The previous prime is 378143707. The next prime is 378143741. The reversal of 378143712 is 217341873.

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

It is a super-3 number, since 3×378143712³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9498 + ... + 29094.

It is an arithmetic number, because the mean of its divisors is an integer number (15159053).

Almost surely, 2^378143712 is an apocalyptic number.

378143712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378143712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545725908).

378143712 is an abundant number, since it is smaller than the sum of its proper divisors (713308104).

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

378143712 is a wasteful number, since it uses less digits than its factorization.

378143712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19680 (or 19669 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 378143712 is about 19445.9176178446. The cubic root of 378143712 is about 723.1342989561.

The spelling of 378143712 in words is "three hundred seventy-eight million, one hundred forty-three thousand, seven hundred twelve".