1023421400 has 96 divisors (see below), whose sum is σ = 2439018000. Its totient is φ = 399244800.

The previous prime is 1023421391. The next prime is 1023421411. The reversal of 1023421400 is 41243201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1817519 + ... + 1818081.

Almost surely, 2^1023421400 is an apocalyptic number.

1023421400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023421400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219509000).

1023421400 is an abundant number, since it is smaller than the sum of its proper divisors (1415596600).

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

1023421400 is a wasteful number, since it uses less digits than its factorization.

1023421400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1023421400 is about 31990.9580975625. The cubic root of 1023421400 is about 1007.7469629197.

Adding to 1023421400 its reverse (41243201), we get a palindrome (1064664601).

The spelling of 1023421400 in words is "one billion, twenty-three million, four hundred twenty-one thousand, four hundred".