654614420 has 24 divisors (see below), whose sum is σ = 1375589544. Its totient is φ = 261674496.

The previous prime is 654614417. The next prime is 654614423. The reversal of 654614420 is 24416456.

It is an interprime number because it is at equal distance from previous prime (654614417) and next prime (654614423).

It can be written as a sum of positive squares in 4 ways, for example, as 8844676 + 645769744 = 2974^2 + 25412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654614423) 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, 23264 + ... + 43016.

It is an arithmetic number, because the mean of its divisors is an integer number (57316231).

Almost surely, 2^654614420 is an apocalyptic number.

It is an amenable number.

654614420 is an abundant number, since it is smaller than the sum of its proper divisors (720975124).

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

654614420 is a wasteful number, since it uses less digits than its factorization.

654614420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21419 (or 21417 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 654614420 is about 25585.4337465676. The cubic root of 654614420 is about 868.2841152650.

The spelling of 654614420 in words is "six hundred fifty-four million, six hundred fourteen thousand, four hundred twenty".