464840415 has 72 divisors (see below), whose sum is σ = 918674640. Its totient is φ = 216732672.

The previous prime is 464840407. The next prime is 464840417. The reversal of 464840415 is 514048464.

It is a happy number.

464840415 is a `hidden beast` number, since 4 + 648 + 4 + 0 + 4 + 1 + 5 = 666.

It is not a de Polignac number, because 464840415 - 2³ = 464840407 is a prime.

It is a super-2 number, since 2×464840415² = 432153222834744450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 464840415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464840417) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 142887 + ... + 146103.

It is an arithmetic number, because the mean of its divisors is an integer number (12759370).

Almost surely, 2^464840415 is an apocalyptic number.

464840415 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

464840415 is a deficient number, since it is larger than the sum of its proper divisors (453834225).

464840415 is a wasteful number, since it uses less digits than its factorization.

464840415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 464840415 is about 21560.1580467305. The cubic root of 464840415 is about 774.6424517883.

Adding to 464840415 its reverse (514048464), we get a palindrome (978888879).

The spelling of 464840415 in words is "four hundred sixty-four million, eight hundred forty thousand, four hundred fifteen".