352721448 has 48 divisors (see below), whose sum is σ = 966813120. Its totient is φ = 116155296.

The previous prime is 352721443. The next prime is 352721497. The reversal of 352721448 is 844127253.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (352721443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23536 + ... + 35487.

It is an arithmetic number, because the mean of its divisors is an integer number (20141940).

Almost surely, 2^352721448 is an apocalyptic number.

It is an amenable number.

352721448 is an abundant number, since it is smaller than the sum of its proper divisors (614091672).

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

352721448 is a wasteful number, since it uses less digits than its factorization.

352721448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59118 (or 59111 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 352721448 is about 18780.8798515937. The cubic root of 352721448 is about 706.5517171914.

The spelling of 352721448 in words is "three hundred fifty-two million, seven hundred twenty-one thousand, four hundred forty-eight".