457320018 has 16 divisors (see below), whose sum is σ = 914855616. Its totient is φ = 152404080.

The previous prime is 457320013. The next prime is 457320023. The reversal of 457320018 is 810023754.

It is an interprime number because it is at equal distance from previous prime (457320013) and next prime (457320023).

It is not an unprimeable number, because it can be changed into a prime (457320013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35680 + ... + 46772.

It is an arithmetic number, because the mean of its divisors is an integer number (57178476).

Almost surely, 2^457320018 is an apocalyptic number.

457320018 is an abundant number, since it is smaller than the sum of its proper divisors (457535598).

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

457320018 is a wasteful number, since it uses less digits than its factorization.

457320018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17969.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 457320018 is about 21385.0419218668. The cubic root of 457320018 is about 770.4422140807.

The spelling of 457320018 in words is "four hundred fifty-seven million, three hundred twenty thousand, eighteen".