654621450 has 96 divisors (see below), whose sum is σ = 1862785536. Its totient is φ = 149031360.

The previous prime is 654621449. The next prime is 654621467. The reversal of 654621450 is 54126456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 296049 + ... + 298251.

It is an arithmetic number, because the mean of its divisors is an integer number (19404016).

Almost surely, 2^654621450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654621450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (931392768).

654621450 is an abundant number, since it is smaller than the sum of its proper divisors (1208164086).

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

654621450 is a wasteful number, since it uses less digits than its factorization.

654621450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508 (or 2503 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 654621450 is about 25585.5711290563. The cubic root of 654621450 is about 868.2872234639.

The spelling of 654621450 in words is "six hundred fifty-four million, six hundred twenty-one thousand, four hundred fifty".