428242012 has 24 divisors (see below), whose sum is σ = 826746480. Its totient is φ = 192466560.

The previous prime is 428241997. The next prime is 428242027. The reversal of 428242012 is 210242824.

It is an interprime number because it is at equal distance from previous prime (428241997) and next prime (428242027).

It is a congruent number.

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, 50763 + ... + 58594.

It is an arithmetic number, because the mean of its divisors is an integer number (34447770).

Almost surely, 2^428242012 is an apocalyptic number.

It is an amenable number.

428242012 is a deficient number, since it is larger than the sum of its proper divisors (398504468).

428242012 is a wasteful number, since it uses less digits than its factorization.

428242012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109461 (or 109459 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 428242012 is about 20694.0090847569. The cubic root of 428242012 is about 753.7542205631.

Adding to 428242012 its reverse (210242824), we get a palindrome (638484836).

The spelling of 428242012 in words is "four hundred twenty-eight million, two hundred forty-two thousand, twelve".