3902224 has 10 divisors (see below), whose sum is σ = 7560590. Its totient is φ = 1951104.

The previous prime is 3902219. The next prime is 3902237. The reversal of 3902224 is 4222093.

It can be written as a sum of positive squares in only one way, i.e., 3312400 + 589824 = 1820^2 + 768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3902195 and 3902204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121929 + ... + 121960.

It is an arithmetic number, because the mean of its divisors is an integer number (756059).

Almost surely, 2^3902224 is an apocalyptic number.

It is an amenable number.

3902224 is a deficient number, since it is larger than the sum of its proper divisors (3658366).

3902224 is a wasteful number, since it uses less digits than its factorization.

3902224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243897 (or 243891 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3902224 is about 1975.4047686487. The cubic root of 3902224 is about 157.4360065884.

The spelling of 3902224 in words is "three million, nine hundred two thousand, two hundred twenty-four".