10203033440 has 96 divisors (see below), whose sum is σ = 25401600000. Its totient is φ = 3862107648.

The previous prime is 10203033439. The next prime is 10203033443. The reversal of 10203033440 is 4433030201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203033443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4555841 + ... + 4558079.

It is an arithmetic number, because the mean of its divisors is an integer number (264600000).

Almost surely, 2^10203033440 is an apocalyptic number.

10203033440 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 10203033440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12700800000).

10203033440 is an abundant number, since it is smaller than the sum of its proper divisors (15198566560).

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

10203033440 is a wasteful number, since it uses less digits than its factorization.

10203033440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772 (or 3764 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 10203033440 its reverse (4433030201), we get a palindrome (14636063641).

The spelling of 10203033440 in words is "ten billion, two hundred three million, thirty-three thousand, four hundred forty".