1023535420 has 24 divisors (see below), whose sum is σ = 2242878624. Its totient is φ = 391613376.

The previous prime is 1023535399. The next prime is 1023535427. The reversal of 1023535420 is 245353201.

1023535420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023535427) 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, 1112079 + ... + 1112998.

It is an arithmetic number, because the mean of its divisors is an integer number (93453276).

Almost surely, 2^1023535420 is an apocalyptic number.

1023535420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023535420 is an abundant number, since it is smaller than the sum of its proper divisors (1219343204).

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

1023535420 is a wasteful number, since it uses less digits than its factorization.

1023535420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225109 (or 2225107 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1023535420 is about 31992.7401139696. The cubic root of 1023535420 is about 1007.7843860971.

Adding to 1023535420 its reverse (245353201), we get a palindrome (1268888621).

The spelling of 1023535420 in words is "one billion, twenty-three million, five hundred thirty-five thousand, four hundred twenty".