464189994 has 16 divisors (see below), whose sum is σ = 1031533440. Its totient is φ = 154729980.

The previous prime is 464189989. The next prime is 464190047. The reversal of 464189994 is 499981464.

It is a happy number.

464189994 is a `hidden beast` number, since 464 + 1 + 8 + 99 + 94 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 8596111 = 464189994 / (4 + 6 + 4 + 1 + 8 + 9 + 9 + 9 + 4).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 464189994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4298002 + ... + 4298109.

It is an arithmetic number, because the mean of its divisors is an integer number (64470840).

Almost surely, 2^464189994 is an apocalyptic number.

464189994 is an abundant number, since it is smaller than the sum of its proper divisors (567343446).

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

464189994 is a wasteful number, since it uses less digits than its factorization.

464189994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596122 (or 8596116 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 464189994 is about 21545.0689021873. The cubic root of 464189994 is about 774.2809808524.

The spelling of 464189994 in words is "four hundred sixty-four million, one hundred eighty-nine thousand, nine hundred ninety-four".