352423040 has 32 divisors (see below), whose sum is σ = 842512860. Its totient is φ = 140968960.

The previous prime is 352423033. The next prime is 352423067. The reversal of 352423040 is 40324253.

It can be written as a sum of positive squares in 2 ways, for example, as 347151424 + 5271616 = 18632^2 + 2296^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-4 number, since 4×352423040⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 352422997 and 352423015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274691 + ... + 275970.

Almost surely, 2^352423040 is an apocalyptic number.

It is an amenable number.

352423040 is an abundant number, since it is smaller than the sum of its proper divisors (490089820).

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

352423040 is an equidigital number, since it uses as much as digits as its factorization.

352423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550680 (or 550668 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 352423040 is about 18772.9337078678. The cubic root of 352423040 is about 706.3524096149.

Adding to 352423040 its reverse (40324253), we get a palindrome (392747293).

The spelling of 352423040 in words is "three hundred fifty-two million, four hundred twenty-three thousand, forty".