457447770 has 128 divisors (see below), whose sum is σ = 1339027200. Its totient is φ = 110433024.

The previous prime is 457447721. The next prime is 457447799. The reversal of 457447770 is 77744754.

457447770 is a `hidden beast` number, since 4 + 574 + 4 + 7 + 7 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 63 ways as a sum of consecutive naturals, for example, 184801 + ... + 187259.

It is an arithmetic number, because the mean of its divisors is an integer number (10461150).

Almost surely, 2^457447770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 457447770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669513600).

457447770 is an abundant number, since it is smaller than the sum of its proper divisors (881579430).

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

457447770 is a wasteful number, since it uses less digits than its factorization.

457447770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541 (or 2535 counting only the distinct ones).

The product of its (nonzero) digits is 768320, while the sum is 45.

The square root of 457447770 is about 21388.0286609122. The cubic root of 457447770 is about 770.5139482175.

The spelling of 457447770 in words is "four hundred fifty-seven million, four hundred forty-seven thousand, seven hundred seventy".