652472730 has 288 divisors, whose sum is σ = 2240784000. Its totient is φ = 130201344.

The previous prime is 652472719. The next prime is 652472741. The reversal of 652472730 is 37274256.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (652472719) and next prime (652472741).

It is a super-3 number, since 3×652472730³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 1088971 + ... + 1089569.

It is an arithmetic number, because the mean of its divisors is an integer number (7780500).

Almost surely, 2^652472730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652472730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1120392000).

652472730 is an abundant number, since it is smaller than the sum of its proper divisors (1588311270).

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

652472730 is a wasteful number, since it uses less digits than its factorization.

652472730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 652472730 is about 25543.5457601328. The cubic root of 652472730 is about 867.3361643057.

The spelling of 652472730 in words is "six hundred fifty-two million, four hundred seventy-two thousand, seven hundred thirty".