653354028 has 18 divisors (see below), whose sum is σ = 1651533884. Its totient is φ = 217784664.

The previous prime is 653354017. The next prime is 653354057. The reversal of 653354028 is 820453356.

It is a happy number.

653354028 is a `hidden beast` number, since 65 + 33 + 540 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 18148723 = 653354028 / (6 + 5 + 3 + 3 + 5 + 4 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 653353983 and 653354001.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9074326 + ... + 9074397.

Almost surely, 2^653354028 is an apocalyptic number.

It is an amenable number.

653354028 is an abundant number, since it is smaller than the sum of its proper divisors (998179856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653354028 is a wasteful number, since it uses less digits than its factorization.

653354028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18148733 (or 18148728 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 653354028 is about 25560.7908328361. The cubic root of 653354028 is about 867.7264936372.

The spelling of 653354028 in words is "six hundred fifty-three million, three hundred fifty-four thousand, twenty-eight".