3020428 has 6 divisors (see below), whose sum is σ = 5285756. Its totient is φ = 1510212.

The previous prime is 3020401. The next prime is 3020431. The reversal of 3020428 is 8240203.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377550 + ... + 377557.

Almost surely, 2^3020428 is an apocalyptic number.

It is an amenable number.

3020428 is a deficient number, since it is larger than the sum of its proper divisors (2265328).

3020428 is a wasteful number, since it uses less digits than its factorization.

3020428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755111 (or 755109 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 3020428 is about 1737.9378584978. The cubic root of 3020428 is about 144.5515754001.

The spelling of 3020428 in words is "three million, twenty thousand, four hundred twenty-eight".