458242440 has 32 divisors (see below), whose sum is σ = 1374727680. Its totient is φ = 122197952.

The previous prime is 458242397. The next prime is 458242441. The reversal of 458242440 is 44242854.

It is a super-2 number, since 2×458242440² = 419972267634307200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (458242441) 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, 1909224 + ... + 1909463.

It is an arithmetic number, because the mean of its divisors is an integer number (42960240).

Almost surely, 2^458242440 is an apocalyptic number.

458242440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

458242440 is an abundant number, since it is smaller than the sum of its proper divisors (916485240).

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

458242440 is a wasteful number, since it uses less digits than its factorization.

458242440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818701 (or 3818697 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 33.

The square root of 458242440 is about 21406.5980482654. The cubic root of 458242440 is about 770.9598644071.

The spelling of 458242440 in words is "four hundred fifty-eight million, two hundred forty-two thousand, four hundred forty".