3214820 has 24 divisors (see below), whose sum is σ = 7715904. Its totient is φ = 1102176.

The previous prime is 3214811. The next prime is 3214831. The reversal of 3214820 is 284123.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3214792 and 3214801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11342 + ... + 11621.

It is an arithmetic number, because the mean of its divisors is an integer number (321496).

Almost surely, 2^3214820 is an apocalyptic number.

It is an amenable number.

3214820 is an abundant number, since it is smaller than the sum of its proper divisors (4501084).

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

3214820 is a wasteful number, since it uses less digits than its factorization.

3214820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22979 (or 22977 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3214820 is about 1792.9919129767. The cubic root of 3214820 is about 147.5883986054.

Adding to 3214820 its reverse (284123), we get a palindrome (3498943).

The spelling of 3214820 in words is "three million, two hundred fourteen thousand, eight hundred twenty".