651808032 has 48 divisors (see below), whose sum is σ = 1747412352. Its totient is φ = 212645120.

The previous prime is 651808007. The next prime is 651808039. The reversal of 651808032 is 230808156.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 651807984 and 651808002.

It is not an unprimeable number, because it can be changed into a prime (651808039) 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, 67719 + ... + 76742.

It is an arithmetic number, because the mean of its divisors is an integer number (36404424).

Almost surely, 2^651808032 is an apocalyptic number.

It is an amenable number.

651808032 is an abundant number, since it is smaller than the sum of its proper divisors (1095604320).

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

651808032 is a wasteful number, since it uses less digits than its factorization.

651808032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144521 (or 144513 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 651808032 is about 25530.5313693233. The cubic root of 651808032 is about 867.0415351352.

The spelling of 651808032 in words is "six hundred fifty-one million, eight hundred eight thousand, thirty-two".