1020348428 has 12 divisors (see below), whose sum is σ = 1947937992. Its totient is φ = 463794720.

The previous prime is 1020348401. The next prime is 1020348467. The reversal of 1020348428 is 8248430201.

It is a super-2 number, since 2×1020348428² = 2082221829044142368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020348394 and 1020348403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11594825 + ... + 11594912.

It is an arithmetic number, because the mean of its divisors is an integer number (162328166).

Almost surely, 2^1020348428 is an apocalyptic number.

It is an amenable number.

1020348428 is a deficient number, since it is larger than the sum of its proper divisors (927589564).

1020348428 is a wasteful number, since it uses less digits than its factorization.

1020348428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23189752 (or 23189750 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 1020348428 is about 31942.8932315155. The cubic root of 1020348428 is about 1006.7373159681.

Adding to 1020348428 its reverse (8248430201), we get a palindrome (9268778629).

The spelling of 1020348428 in words is "one billion, twenty million, three hundred forty-eight thousand, four hundred twenty-eight".