464320820 has 12 divisors (see below), whose sum is σ = 975073764. Its totient is φ = 185728320.

The previous prime is 464320819. The next prime is 464320867. The reversal of 464320820 is 28023464.

It can be written as a sum of positive squares in 2 ways, for example, as 98287396 + 366033424 = 9914^2 + 19132^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 11608001 + ... + 11608040.

It is an arithmetic number, because the mean of its divisors is an integer number (81256147).

Almost surely, 2^464320820 is an apocalyptic number.

It is an amenable number.

464320820 is an abundant number, since it is smaller than the sum of its proper divisors (510752944).

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

464320820 is a wasteful number, since it uses less digits than its factorization.

464320820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23216050 (or 23216048 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 464320820 is about 21548.1047890528. The cubic root of 464320820 is about 774.3537144098.

The spelling of 464320820 in words is "four hundred sixty-four million, three hundred twenty thousand, eight hundred twenty".