468399978 has 12 divisors (see below), whose sum is σ = 1014866658. Its totient is φ = 156133320.

The previous prime is 468399973. The next prime is 468400001. The reversal of 468399978 is 879993864.

It can be written as a sum of positive squares in only one way, i.e., 323028729 + 145371249 = 17973^2 + 12057^2 .

It is not an unprimeable number, because it can be changed into a prime (468399973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13011093 + ... + 13011128.

Almost surely, 2^468399978 is an apocalyptic number.

468399978 is an abundant number, since it is smaller than the sum of its proper divisors (546466680).

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

468399978 is a wasteful number, since it uses less digits than its factorization.

468399978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26022229 (or 26022226 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 468399978 is about 21642.5501732120. The cubic root of 468399978 is about 776.6147272783.

The spelling of 468399978 in words is "four hundred sixty-eight million, three hundred ninety-nine thousand, nine hundred seventy-eight".