654654336 has 128 divisors (see below), whose sum is σ = 2073945600. Its totient is φ = 178894848.

The previous prime is 654654281. The next prime is 654654337. The reversal of 654654336 is 633456456.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654654337) 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, 56530 + ... + 67118.

It is an arithmetic number, because the mean of its divisors is an integer number (16202700).

Almost surely, 2^654654336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654654336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1036972800).

654654336 is an abundant number, since it is smaller than the sum of its proper divisors (1419291264).

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

654654336 is a wasteful number, since it uses less digits than its factorization.

654654336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10636 (or 10624 counting only the distinct ones).

The product of its digits is 777600, while the sum is 42.

The square root of 654654336 is about 25586.2137878976. The cubic root of 654654336 is about 868.3017631726.

The spelling of 654654336 in words is "six hundred fifty-four million, six hundred fifty-four thousand, three hundred thirty-six".