46218978 has 32 divisors (see below), whose sum is σ = 110611200. Its totient is φ = 14221008.

The previous prime is 46218973. The next prime is 46218989. The reversal of 46218978 is 87981264.

46218978 is a `hidden beast` number, since 462 + 189 + 7 + 8 = 666.

46218978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (46218973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32218 + ... + 33621.

It is an arithmetic number, because the mean of its divisors is an integer number (3456600).

Almost surely, 2^46218978 is an apocalyptic number.

46218978 is an abundant number, since it is smaller than the sum of its proper divisors (64392222).

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

46218978 is a wasteful number, since it uses less digits than its factorization.

46218978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65863 (or 65857 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 46218978 is about 6798.4540889823. The cubic root of 46218978 is about 358.8724442930.

It can be divided in two parts, 46 and 218978, that added together give a square (219024 = 468²).

The spelling of 46218978 in words is "forty-six million, two hundred eighteen thousand, nine hundred seventy-eight".