1023403700 has 72 divisors (see below), whose sum is σ = 2440718784. Its totient is φ = 369376000.

The previous prime is 1023403687. The next prime is 1023403739. The reversal of 1023403700 is 73043201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147305 + ... + 154095.

It is an arithmetic number, because the mean of its divisors is an integer number (33898872).

Almost surely, 2^1023403700 is an apocalyptic number.

1023403700 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 1023403700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1220359392).

1023403700 is an abundant number, since it is smaller than the sum of its proper divisors (1417315084).

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

1023403700 is a wasteful number, since it uses less digits than its factorization.

1023403700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6953 (or 6946 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 1023403700 is about 31990.6814556989. The cubic root of 1023403700 is about 1007.7411532490.

Adding to 1023403700 its reverse (73043201), we get a palindrome (1096446901).

The spelling of 1023403700 in words is "one billion, twenty-three million, four hundred three thousand, seven hundred".