378133720 has 64 divisors (see below), whose sum is σ = 909442080. Its totient is φ = 140998656.

The previous prime is 378133711. The next prime is 378133751. The reversal of 378133720 is 27331873.

It is a super-2 number, since 2×378133720² = 285970220402076800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70162 + ... + 75358.

Almost surely, 2^378133720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378133720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454721040).

378133720 is an abundant number, since it is smaller than the sum of its proper divisors (531308360).

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

378133720 is a wasteful number, since it uses less digits than its factorization.

378133720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332 (or 5328 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 378133720 is about 19445.6606984695. The cubic root of 378133720 is about 723.1279295773.

The spelling of 378133720 in words is "three hundred seventy-eight million, one hundred thirty-three thousand, seven hundred twenty".