350552421 has 16 divisors (see below), whose sum is σ = 527853120. Its totient is φ = 229869360.

The previous prime is 350552401. The next prime is 350552429. The reversal of 350552421 is 124255053.

It is a happy number.

It is not a de Polignac number, because 350552421 - 2⁹ = 350551909 is a prime.

It is a super-2 number, since 2×350552421² = 245773999737922482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350552429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104775 + ... + 108068.

It is an arithmetic number, because the mean of its divisors is an integer number (32990820).

Almost surely, 2^350552421 is an apocalyptic number.

It is an amenable number.

350552421 is a deficient number, since it is larger than the sum of its proper divisors (177300699).

350552421 is a wasteful number, since it uses less digits than its factorization.

350552421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212913 (or 212907 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 350552421 is about 18723.0451850120. The cubic root of 350552421 is about 705.1004474351.

The spelling of 350552421 in words is "three hundred fifty million, five hundred fifty-two thousand, four hundred twenty-one".