653228494 has 16 divisors (see below), whose sum is σ = 992811600. Its totient is φ = 322305984.

The previous prime is 653228491. The next prime is 653228549. The reversal of 653228494 is 494822356.

It is a super-3 number, since 3×653228494³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 653228494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653228491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94012 + ... + 100720.

It is an arithmetic number, because the mean of its divisors is an integer number (62050725).

Almost surely, 2^653228494 is an apocalyptic number.

653228494 is a deficient number, since it is larger than the sum of its proper divisors (339583106).

653228494 is a wasteful number, since it uses less digits than its factorization.

653228494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7347.

The product of its digits is 414720, while the sum is 43.

The square root of 653228494 is about 25558.3351179219. The cubic root of 653228494 is about 867.6709157268.

The spelling of 653228494 in words is "six hundred fifty-three million, two hundred twenty-eight thousand, four hundred ninety-four".