352418881 has 6 divisors (see below), whose sum is σ = 364154946. Its totient is φ = 341049600.

The previous prime is 352418873. The next prime is 352418887. The reversal of 352418881 is 188814253.

It can be written as a sum of positive squares in only one way, i.e., 285441025 + 66977856 = 16895^2 + 8184^2 .

It is not a de Polignac number, because 352418881 - 2³ = 352418873 is a prime.

It is a super-2 number, since 2×352418881² = 248398135370584322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352418887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182400 + ... + 184321.

It is an arithmetic number, because the mean of its divisors is an integer number (60692491).

Almost surely, 2^352418881 is an apocalyptic number.

352418881 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

352418881 is a deficient number, since it is larger than the sum of its proper divisors (11736065).

352418881 is an equidigital number, since it uses as much as digits as its factorization.

352418881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366783 (or 366752 counting only the distinct ones).

The product of its digits is 61440, while the sum is 40.

The square root of 352418881 is about 18772.8229363620. The cubic root of 352418881 is about 706.3496310118.

The spelling of 352418881 in words is "three hundred fifty-two million, four hundred eighteen thousand, eight hundred eighty-one".