352047421 has 8 divisors (see below), whose sum is σ = 388368000. Its totient is φ = 316446240.

The previous prime is 352047419. The next prime is 352047427. The reversal of 352047421 is 124740253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 352047421 - 2¹ = 352047419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 352047421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352047427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178821 + ... + 180778.

It is an arithmetic number, because the mean of its divisors is an integer number (48546000).

Almost surely, 2^352047421 is an apocalyptic number.

It is an amenable number.

352047421 is a deficient number, since it is larger than the sum of its proper divisors (36320579).

352047421 is a wasteful number, since it uses less digits than its factorization.

352047421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359699.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 352047421 is about 18762.9267706294. The cubic root of 352047421 is about 706.1013725825.

Adding to 352047421 its reverse (124740253), we get a palindrome (476787674).

The spelling of 352047421 in words is "three hundred fifty-two million, forty-seven thousand, four hundred twenty-one".