378906780 has 96 divisors (see below), whose sum is σ = 1217341440. Its totient is φ = 86261760.

The previous prime is 378906767. The next prime is 378906817. The reversal of 378906780 is 87609873.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112156 + ... + 115484.

It is an arithmetic number, because the mean of its divisors is an integer number (12680640).

Almost surely, 2^378906780 is an apocalyptic number.

378906780 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 378906780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608670720).

378906780 is an abundant number, since it is smaller than the sum of its proper divisors (838434660).

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

378906780 is a wasteful number, since it uses less digits than its factorization.

378906780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619 (or 3617 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 378906780 is about 19465.5279918116. The cubic root of 378906780 is about 723.6203838986.

The spelling of 378906780 in words is "three hundred seventy-eight million, nine hundred six thousand, seven hundred eighty".