728354145 has 16 divisors (see below), whose sum is σ = 1202959872. Its totient is φ = 375924480.

The previous prime is 728354093. The next prime is 728354147. The reversal of 728354145 is 541453827.

It is not a de Polignac number, because 728354145 - 2¹³ = 728345953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728354147) 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, 782712 + ... + 783641.

It is an arithmetic number, because the mean of its divisors is an integer number (75184992).

Almost surely, 2^728354145 is an apocalyptic number.

It is an amenable number.

728354145 is a deficient number, since it is larger than the sum of its proper divisors (474605727).

728354145 is a wasteful number, since it uses less digits than its factorization.

728354145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566392.

The product of its digits is 134400, while the sum is 39.

The square root of 728354145 is about 26988.0370720066. The cubic root of 728354145 is about 899.7341375206.

The spelling of 728354145 in words is "seven hundred twenty-eight million, three hundred fifty-four thousand, one hundred forty-five".