1420031028 has 24 divisors (see below), whose sum is σ = 3568283488. Its totient is φ = 436932576.

The previous prime is 1420031021. The next prime is 1420031033. The reversal of 1420031028 is 8201300241.

It is a junction number, because it is equal to n+sod(n) for n = 1420030995 and 1420031013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420031021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551226 + ... + 4551537.

Almost surely, 2^1420031028 is an apocalyptic number.

It is an amenable number.

1420031028 is an abundant number, since it is smaller than the sum of its proper divisors (2148252460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420031028 is a wasteful number, since it uses less digits than its factorization.

1420031028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9102783 (or 9102781 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1420031028 is about 37683.2990593977. The cubic root of 1420031028 is about 1123.9990512186. Note that the first 3 decimals are identical.

Adding to 1420031028 its reverse (8201300241), we get a palindrome (9621331269).

The spelling of 1420031028 in words is "one billion, four hundred twenty million, thirty-one thousand, twenty-eight".