378404873 has 12 divisors (see below), whose sum is σ = 475352640. Its totient is φ = 294860280.

The previous prime is 378404869. The next prime is 378404881.

378404873 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 378404873 - 2² = 378404869 is a prime.

It is a super-2 number, since 2×378404873² = 286380495820292258, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378404813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222533 + ... + 224226.

It is an arithmetic number, because the mean of its divisors is an integer number (39612720).

Almost surely, 2^378404873 is an apocalyptic number.

It is an amenable number.

378404873 is a deficient number, since it is larger than the sum of its proper divisors (96947767).

378404873 is a wasteful number, since it uses less digits than its factorization.

378404873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446788 (or 446777 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

The square root of 378404873 is about 19452.6315186404. The cubic root of 378404873 is about 723.3007356930.

The spelling of 378404873 in words is "three hundred seventy-eight million, four hundred four thousand, eight hundred seventy-three".