1457318388 has 12 divisors (see below), whose sum is σ = 3400409600. Its totient is φ = 485772792.

The previous prime is 1457318383. The next prime is 1457318389. The reversal of 1457318388 is 8838137541.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457318383) 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 3 ways as a sum of consecutive naturals, for example, 60721588 + ... + 60721611.

Almost surely, 2^1457318388 is an apocalyptic number.

It is an amenable number.

1457318388 is an abundant number, since it is smaller than the sum of its proper divisors (1943091212).

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

1457318388 is a wasteful number, since it uses less digits than its factorization.

1457318388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121443206 (or 121443204 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 1457318388 is about 38174.8397246144. The cubic root of 1457318388 is about 1133.7522142126.

The spelling of 1457318388 in words is "one billion, four hundred fifty-seven million, three hundred eighteen thousand, three hundred eighty-eight".