1020228345 has 32 divisors (see below), whose sum is σ = 1821926400. Its totient is φ = 541665792.

The previous prime is 1020228331. The next prime is 1020228373. The reversal of 1020228345 is 5438220201.

It is not a de Polignac number, because 1020228345 - 2¹⁴ = 1020211961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13161 + ... + 47049.

It is an arithmetic number, because the mean of its divisors is an integer number (56935200).

Almost surely, 2^1020228345 is an apocalyptic number.

1020228345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020228345 is a deficient number, since it is larger than the sum of its proper divisors (801698055).

1020228345 is a wasteful number, since it uses less digits than its factorization.

1020228345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34126 (or 34120 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1020228345 is about 31941.0135249337. The cubic root of 1020228345 is about 1006.6978207079.

Adding to 1020228345 its reverse (5438220201), we get a palindrome (6458448546).

The spelling of 1020228345 in words is "one billion, twenty million, two hundred twenty-eight thousand, three hundred forty-five".