1456136728 has 64 divisors (see below), whose sum is σ = 2850059520. Its totient is φ = 697065600.

The previous prime is 1456136723. The next prime is 1456136741. The reversal of 1456136728 is 8276316541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456136723) 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, 3158418 + ... + 3158878.

It is an arithmetic number, because the mean of its divisors is an integer number (44532180).

Almost surely, 2^1456136728 is an apocalyptic number.

It is an amenable number.

1456136728 is a deficient number, since it is larger than the sum of its proper divisors (1393922792).

1456136728 is a wasteful number, since it uses less digits than its factorization.

1456136728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 684 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 1456136728 is about 38159.3596382329. The cubic root of 1456136728 is about 1133.4456987399.

The spelling of 1456136728 in words is "one billion, four hundred fifty-six million, one hundred thirty-six thousand, seven hundred twenty-eight".