457045420 has 72 divisors (see below), whose sum is σ = 1080845136. Its totient is φ = 161369472.

The previous prime is 457045411. The next prime is 457045427. The reversal of 457045420 is 24540754.

It is not an unprimeable number, because it can be changed into a prime (457045427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135879 + ... + 139201.

It is an arithmetic number, because the mean of its divisors is an integer number (15011738).

Almost surely, 2^457045420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 457045420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540422568).

457045420 is an abundant number, since it is smaller than the sum of its proper divisors (623799716).

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

457045420 is a wasteful number, since it uses less digits than its factorization.

457045420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 457045420 is about 21378.6206290303. The cubic root of 457045420 is about 770.2879790877.

The spelling of 457045420 in words is "four hundred fifty-seven million, forty-five thousand, four hundred twenty".