342220401 has 12 divisors (see below), whose sum is σ = 494748228. Its totient is φ = 227948544.

The previous prime is 342220393. The next prime is 342220441. The reversal of 342220401 is 104022243.

342220401 is a `hidden beast` number, since 3 + 42 + 220 + 401 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123210000 + 219010401 = 11100^2 + 14799^2 .

It is not a de Polignac number, because 342220401 - 2³ = 342220393 is a prime.

It is a super-2 number, since 2×342220401² = 234229605721201602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (342220441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5200 + ... + 26673.

It is an arithmetic number, because the mean of its divisors is an integer number (41229019).

Almost surely, 2^342220401 is an apocalyptic number.

It is an amenable number.

342220401 is a deficient number, since it is larger than the sum of its proper divisors (152527827).

342220401 is a wasteful number, since it uses less digits than its factorization.

342220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33072 (or 33069 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 342220401 is about 18499.2000097302. The cubic root of 342220401 is about 699.4692582362.

Adding to 342220401 its reverse (104022243), we get a palindrome (446242644).

The spelling of 342220401 in words is "three hundred forty-two million, two hundred twenty thousand, four hundred one".