3220401146 has 4 divisors (see below), whose sum is σ = 4830601722. Its totient is φ = 1610200572.

The previous prime is 3220401139. The next prime is 3220401157. The reversal of 3220401146 is 6411040223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2315053225 + 905347921 = 48115^2 + 30089^2 .

It is a super-2 number, since 2×3220401146² = 20741967082316226632, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805100285 + ... + 805100288.

Almost surely, 2^3220401146 is an apocalyptic number.

3220401146 is a deficient number, since it is larger than the sum of its proper divisors (1610200576).

3220401146 is a wasteful number, since it uses less digits than its factorization.

3220401146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610200575.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 3220401146 is about 56748.5783610480. The cubic root of 3220401146 is about 1476.7375705845.

Adding to 3220401146 its reverse (6411040223), we get a palindrome (9631441369).

The spelling of 3220401146 in words is "three billion, two hundred twenty million, four hundred one thousand, one hundred forty-six".