352722440 has 64 divisors (see below), whose sum is σ = 910431360. Its totient is φ = 120476160.

The previous prime is 352722437. The next prime is 352722493. The reversal of 352722440 is 44227253.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76439 + ... + 80921.

It is an arithmetic number, because the mean of its divisors is an integer number (14225490).

Almost surely, 2^352722440 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 352722440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455215680).

352722440 is an abundant number, since it is smaller than the sum of its proper divisors (557708920).

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

352722440 is a wasteful number, since it uses less digits than its factorization.

352722440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782 (or 4778 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 352722440 is about 18780.9062614135. The cubic root of 352722440 is about 706.5523795636.

Adding to 352722440 its reverse (44227253), we get a palindrome (396949693).

The spelling of 352722440 in words is "three hundred fifty-two million, seven hundred twenty-two thousand, four hundred forty".