378693900 has 144 divisors (see below), whose sum is σ = 1311200800. Its totient is φ = 93208320.

The previous prime is 378693881. The next prime is 378693929. The reversal of 378693900 is 9396873.

It is a happy number.

378693900 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29706 + ... + 40494.

Almost surely, 2^378693900 is an apocalyptic number.

378693900 is a gapful number since it is divisible by the number (30) 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 378693900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655600400).

378693900 is an abundant number, since it is smaller than the sum of its proper divisors (932506900).

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

378693900 is a wasteful number, since it uses less digits than its factorization.

378693900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10825 (or 10812 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 378693900 is about 19460.0590954909. The cubic root of 378693900 is about 723.4848420598.

The spelling of 378693900 in words is "three hundred seventy-eight million, six hundred ninety-three thousand, nine hundred".