4311120728 has 8 divisors (see below), whose sum is σ = 8083351380. Its totient is φ = 2155560360.

The previous prime is 4311120727. The next prime is 4311120733. The reversal of 4311120728 is 8270211134.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 4311120728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4311120727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269445038 + ... + 269445053.

Almost surely, 2^4311120728 is an apocalyptic number.

It is an amenable number.

4311120728 is a deficient number, since it is larger than the sum of its proper divisors (3772230652).

4311120728 is a wasteful number, since it uses less digits than its factorization.

4311120728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538890097 (or 538890093 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 4311120728 is about 65659.1252454676. The cubic root of 4311120728 is about 1627.5339688349.

The spelling of 4311120728 in words is "four billion, three hundred eleven million, one hundred twenty thousand, seven hundred twenty-eight".