3207428 has 24 divisors (see below), whose sum is σ = 6753600. Its totient is φ = 1302048.

The previous prime is 3207397. The next prime is 3207431. The reversal of 3207428 is 8247023.

It is a junction number, because it is equal to n+sod(n) for n = 3207397 and 3207406.

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, 2483 + ... + 3546.

It is an arithmetic number, because the mean of its divisors is an integer number (281400).

Almost surely, 2^3207428 is an apocalyptic number.

3207428 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3207428 is an abundant number, since it is smaller than the sum of its proper divisors (3546172).

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

3207428 is a wasteful number, since it uses less digits than its factorization.

3207428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059 (or 6057 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 3207428 is about 1790.9293676748. The cubic root of 3207428 is about 147.4751926105.

The spelling of 3207428 in words is "three million, two hundred seven thousand, four hundred twenty-eight".