464437690 has 16 divisors (see below), whose sum is σ = 858582792. Its totient is φ = 180753984.

The previous prime is 464437681. The next prime is 464437723. The reversal of 464437690 is 96734464.

It can be written as a sum of positive squares in 4 ways, for example, as 456377769 + 8059921 = 21363^2 + 2839^2 .

It is a super-2 number, since 2×464437690² = 431404735785072200, which contains 22 as substring.

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, 627249 + ... + 627988.

Almost surely, 2^464437690 is an apocalyptic number.

464437690 is a deficient number, since it is larger than the sum of its proper divisors (394145102).

464437690 is a wasteful number, since it uses less digits than its factorization.

464437690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255281.

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 464437690 is about 21550.8164578514. The cubic root of 464437690 is about 774.4186774863.

The spelling of 464437690 in words is "four hundred sixty-four million, four hundred thirty-seven thousand, six hundred ninety".