655490460 has 48 divisors (see below), whose sum is σ = 1861235712. Its totient is φ = 172334400.

The previous prime is 655490399. The next prime is 655490461. The reversal of 655490460 is 64094556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655490461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72676 + ... + 81195.

It is an arithmetic number, because the mean of its divisors is an integer number (38775744).

Almost surely, 2^655490460 is an apocalyptic number.

655490460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655490460 is an abundant number, since it is smaller than the sum of its proper divisors (1205745252).

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

655490460 is a wasteful number, since it uses less digits than its factorization.

655490460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153954 (or 153952 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 655490460 is about 25602.5479200801. The cubic root of 655490460 is about 868.6712706806.

The spelling of 655490460 in words is "six hundred fifty-five million, four hundred ninety thousand, four hundred sixty".