653448730 has 32 divisors (see below), whose sum is σ = 1292397120. Its totient is φ = 235902720.

The previous prime is 653448709. The next prime is 653448739. The reversal of 653448730 is 37844356.

It is a super-2 number, since 2×653448730² = 853990485477225800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (653448739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6079 + ... + 36658.

It is an arithmetic number, because the mean of its divisors is an integer number (40387410).

Almost surely, 2^653448730 is an apocalyptic number.

653448730 is a deficient number, since it is larger than the sum of its proper divisors (638948390).

653448730 is a wasteful number, since it uses less digits than its factorization.

653448730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42894.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 653448730 is about 25562.6432514324. The cubic root of 653448730 is about 867.7684165258.

The spelling of 653448730 in words is "six hundred fifty-three million, four hundred forty-eight thousand, seven hundred thirty".