378011280 has 80 divisors (see below), whose sum is σ = 1199119680. Its totient is φ = 98456064.

The previous prime is 378011273. The next prime is 378011281. The reversal of 378011280 is 82110873.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (378011281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7995 + ... + 28634.

It is an arithmetic number, because the mean of its divisors is an integer number (14988996).

Almost surely, 2^378011280 is an apocalyptic number.

378011280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378011280 is an abundant number, since it is smaller than the sum of its proper divisors (821108400).

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

378011280 is a wasteful number, since it uses less digits than its factorization.

378011280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36688 (or 36682 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 378011280 is about 19442.5121833574. The cubic root of 378011280 is about 723.0498713516.

The spelling of 378011280 in words is "three hundred seventy-eight million, eleven thousand, two hundred eighty".