728362148 has 6 divisors (see below), whose sum is σ = 1274633766. Its totient is φ = 364181072.

The previous prime is 728362147. The next prime is 728362153. The reversal of 728362148 is 841263827.

It can be written as a sum of positive squares in only one way, i.e., 621405184 + 106956964 = 24928^2 + 10342^2 .

It is a super-2 number, since 2×728362148² = 1061022837278347808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (728362147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91045265 + ... + 91045272.

It is an arithmetic number, because the mean of its divisors is an integer number (212438961).

Almost surely, 2^728362148 is an apocalyptic number.

It is an amenable number.

728362148 is a deficient number, since it is larger than the sum of its proper divisors (546271618).

728362148 is a wasteful number, since it uses less digits than its factorization.

728362148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182090541 (or 182090539 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 728362148 is about 26988.1853409969. The cubic root of 728362148 is about 899.7374328708.

The spelling of 728362148 in words is "seven hundred twenty-eight million, three hundred sixty-two thousand, one hundred forty-eight".