378788331 has 8 divisors (see below), whose sum is σ = 511444480. Its totient is φ = 249328872.

The previous prime is 378788327. The next prime is 378788363. The reversal of 378788331 is 133887873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378788331 - 2² = 378788327 is a prime.

It is a super-2 number, since 2×378788331² = 286961199403531122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378788131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798895 + ... + 799368.

It is an arithmetic number, because the mean of its divisors is an integer number (63930560).

Almost surely, 2^378788331 is an apocalyptic number.

378788331 is a deficient number, since it is larger than the sum of its proper divisors (132656149).

378788331 is a wasteful number, since it uses less digits than its factorization.

378788331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598345.

The product of its digits is 677376, while the sum is 48.

The square root of 378788331 is about 19462.4852215744. The cubic root of 378788331 is about 723.5449730514.

The spelling of 378788331 in words is "three hundred seventy-eight million, seven hundred eighty-eight thousand, three hundred thirty-one".