464557780 has 12 divisors (see below), whose sum is σ = 975571380. Its totient is φ = 185823104.

The previous prime is 464557747. The next prime is 464557781. The reversal of 464557780 is 87755464.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54819216 + 409738564 = 7404^2 + 20242^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 464557780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464557781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11613925 + ... + 11613964.

It is an arithmetic number, because the mean of its divisors is an integer number (81297615).

Almost surely, 2^464557780 is an apocalyptic number.

It is an amenable number.

464557780 is an abundant number, since it is smaller than the sum of its proper divisors (511013600).

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

464557780 is a wasteful number, since it uses less digits than its factorization.

464557780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23227898 (or 23227896 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The square root of 464557780 is about 21553.6024831117. The cubic root of 464557780 is about 774.4854190725.

The spelling of 464557780 in words is "four hundred sixty-four million, five hundred fifty-seven thousand, seven hundred eighty".