457465218 has 64 divisors (see below), whose sum is σ = 1074247680. Its totient is φ = 127153152.

The previous prime is 457465201. The next prime is 457465237. The reversal of 457465218 is 812564754.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 457465218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 792546 + ... + 793122.

It is an arithmetic number, because the mean of its divisors is an integer number (16785120).

Almost surely, 2^457465218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 457465218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537123840).

457465218 is an abundant number, since it is smaller than the sum of its proper divisors (616782462).

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

457465218 is a wasteful number, since it uses less digits than its factorization.

457465218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071.

The product of its digits is 268800, while the sum is 42.

The square root of 457465218 is about 21388.4365487522. The cubic root of 457465218 is about 770.5237444225.

The spelling of 457465218 in words is "four hundred fifty-seven million, four hundred sixty-five thousand, two hundred eighteen".