353642440 has 32 divisors (see below), whose sum is σ = 837576000. Its totient is φ = 134011584.

The previous prime is 353642423. The next prime is 353642461. The reversal of 353642440 is 44246353.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231900 + ... + 233419.

It is an arithmetic number, because the mean of its divisors is an integer number (26174250).

Almost surely, 2^353642440 is an apocalyptic number.

It is an amenable number.

353642440 is an abundant number, since it is smaller than the sum of its proper divisors (483933560).

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

353642440 is a wasteful number, since it uses less digits than its factorization.

353642440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465349 (or 465345 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 353642440 is about 18805.3832718187. The cubic root of 353642440 is about 707.1661424742.

Adding to 353642440 its reverse (44246353), we get a palindrome (397888793).

The spelling of 353642440 in words is "three hundred fifty-three million, six hundred forty-two thousand, four hundred forty".