352997838 has 56 divisors (see below), whose sum is σ = 803722248. Its totient is φ = 116208432.

The previous prime is 352997807. The next prime is 352997857. The reversal of 352997838 is 838799253.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 119556 + ... + 122472.

It is an arithmetic number, because the mean of its divisors is an integer number (14352183).

Almost surely, 2^352997838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 352997838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401861124).

352997838 is an abundant number, since it is smaller than the sum of its proper divisors (450724410).

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

352997838 is an equidigital number, since it uses as much as digits as its factorization.

352997838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020 (or 3005 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 352997838 is about 18788.2366921433. The cubic root of 352997838 is about 706.7362186299.

The spelling of 352997838 in words is "three hundred fifty-two million, nine hundred ninety-seven thousand, eight hundred thirty-eight".