3201428 has 6 divisors (see below), whose sum is σ = 5602506. Its totient is φ = 1600712.

The previous prime is 3201427. The next prime is 3201431. The reversal of 3201428 is 8241023.

3201428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3055504 + 145924 = 1748^2 + 382^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400175 + ... + 400182.

It is an arithmetic number, because the mean of its divisors is an integer number (933751).

Almost surely, 2^3201428 is an apocalyptic number.

It is an amenable number.

3201428 is a deficient number, since it is larger than the sum of its proper divisors (2401078).

3201428 is a wasteful number, since it uses less digits than its factorization.

3201428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800361 (or 800359 counting only the distinct ones).

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

The square root of 3201428 is about 1789.2534756149. The cubic root of 3201428 is about 147.3831766732.

The spelling of 3201428 in words is "three million, two hundred one thousand, four hundred twenty-eight".