352132240 has 20 divisors (see below), whose sum is σ = 818707644. Its totient is φ = 140852864.

The previous prime is 352132229. The next prime is 352132243. The reversal of 352132240 is 42231253.

It can be written as a sum of positive squares in 2 ways, for example, as 280763536 + 71368704 = 16756^2 + 8448^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×352132240² = 247994228894835200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (352132243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200747 + ... + 2200906.

Almost surely, 2^352132240 is an apocalyptic number.

It is an amenable number.

352132240 is an abundant number, since it is smaller than the sum of its proper divisors (466575404).

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

352132240 is a wasteful number, since it uses less digits than its factorization.

352132240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401666 (or 4401660 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 352132240 is about 18765.1869162020. The cubic root of 352132240 is about 706.1580751738.

Adding to 352132240 its reverse (42231253), we get a palindrome (394363493).

The spelling of 352132240 in words is "three hundred fifty-two million, one hundred thirty-two thousand, two hundred forty".