1457665386 has 8 divisors (see below), whose sum is σ = 2915330784. Its totient is φ = 485888460.

The previous prime is 1457665343. The next prime is 1457665403. The reversal of 1457665386 is 6835667541.

It is a sphenic number, since it is the product of 3 distinct primes.

1457665386 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121472110 + ... + 121472121.

It is an arithmetic number, because the mean of its divisors is an integer number (364416348).

Almost surely, 2^1457665386 is an apocalyptic number.

1457665386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1457665386 is a wasteful number, since it uses less digits than its factorization.

1457665386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242944236.

The product of its digits is 3628800, while the sum is 51.

The square root of 1457665386 is about 38179.3843061933. The cubic root of 1457665386 is about 1133.8421919264.

The spelling of 1457665386 in words is "one billion, four hundred fifty-seven million, six hundred sixty-five thousand, three hundred eighty-six".