1053620728 has 16 divisors (see below), whose sum is σ = 1981895760. Its totient is φ = 525115200.

The previous prime is 1053620723. The next prime is 1053620783. The reversal of 1053620728 is 8270263501.

It is a happy number.

It is a super-2 number, since 2×1053620728² = 2220233276942499968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1053620693 and 1053620702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053620723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209253 + ... + 214228.

It is an arithmetic number, because the mean of its divisors is an integer number (123868485).

Almost surely, 2^1053620728 is an apocalyptic number.

It is an amenable number.

1053620728 is a deficient number, since it is larger than the sum of its proper divisors (928275032).

1053620728 is a wasteful number, since it uses less digits than its factorization.

1053620728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423798 (or 423794 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1053620728 is about 32459.5244573915. The cubic root of 1053620728 is about 1017.5633005591.

The spelling of 1053620728 in words is "one billion, fifty-three million, six hundred twenty thousand, seven hundred twenty-eight".