1456662639 has 8 divisors (see below), whose sum is σ = 1942547632. Its totient is φ = 970943040.

The previous prime is 1456662553. The next prime is 1456662679. The reversal of 1456662639 is 9362666541.

It is a happy number.

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

It is not a de Polignac number, because 1456662639 - 2⁷ = 1456662511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456662679) 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, 19084 + ... + 57249.

It is an arithmetic number, because the mean of its divisors is an integer number (242818454).

Almost surely, 2^1456662639 is an apocalyptic number.

1456662639 is a deficient number, since it is larger than the sum of its proper divisors (485884993).

1456662639 is an equidigital number, since it uses as much as digits as its factorization.

1456662639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82697.

The product of its digits is 1399680, while the sum is 48.

The square root of 1456662639 is about 38166.2499991812. The cubic root of 1456662639 is about 1133.5821373496.

The spelling of 1456662639 in words is "one billion, four hundred fifty-six million, six hundred sixty-two thousand, six hundred thirty-nine".