1485782457 has 16 divisors (see below), whose sum is σ = 1998240000. Its totient is φ = 981961344.

The previous prime is 1485782437. The next prime is 1485782489. The reversal of 1485782457 is 7542875841.

It is a happy number.

It is not a de Polignac number, because 1485782457 - 2⁷ = 1485782329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1485782407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159669 + ... + 168717.

It is an arithmetic number, because the mean of its divisors is an integer number (124890000).

Almost surely, 2^1485782457 is an apocalyptic number.

It is an amenable number.

1485782457 is a deficient number, since it is larger than the sum of its proper divisors (512457543).

1485782457 is a wasteful number, since it uses less digits than its factorization.

1485782457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9520.

The product of its digits is 2508800, while the sum is 51.

The square root of 1485782457 is about 38545.8487648151. The cubic root of 1485782457 is about 1141.0860832989.

The spelling of 1485782457 in words is "one billion, four hundred eighty-five million, seven hundred eighty-two thousand, four hundred fifty-seven".