1457838018 has 48 divisors (see below), whose sum is σ = 3887572416. Its totient is φ = 384484320.

The previous prime is 1457838017. The next prime is 1457838037. The reversal of 1457838018 is 8108387541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1457838017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443368 + ... + 446643.

It is an arithmetic number, because the mean of its divisors is an integer number (80991092).

Almost surely, 2^1457838018 is an apocalyptic number.

1457838018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1457838018 is an abundant number, since it is smaller than the sum of its proper divisors (2429734398).

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

1457838018 is a wasteful number, since it uses less digits than its factorization.

1457838018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890039 (or 890036 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 1457838018 is about 38181.6450405165. The cubic root of 1457838018 is about 1133.8869506482.

The spelling of 1457838018 in words is "one billion, four hundred fifty-seven million, eight hundred thirty-eight thousand, eighteen".