1023345400 has 216 divisors, whose sum is σ = 3045742560. Its totient is φ = 318595200.

The previous prime is 1023345397. The next prime is 1023345409. The reversal of 1023345400 is 45433201.

1023345400 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023345409) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1185369 + ... + 1186231.

It is an arithmetic number, because the mean of its divisors is an integer number (14100660).

Almost surely, 2^1023345400 is an apocalyptic number.

1023345400 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 1023345400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1522871280).

1023345400 is an abundant number, since it is smaller than the sum of its proper divisors (2022397160).

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

1023345400 is a wasteful number, since it uses less digits than its factorization.

1023345400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1023345400 is about 31989.7702398751. The cubic root of 1023345400 is about 1007.7220169672.

Adding to 1023345400 its reverse (45433201), we get a palindrome (1068778601).

The spelling of 1023345400 in words is "one billion, twenty-three million, three hundred forty-five thousand, four hundred".