1023235040 has 96 divisors (see below), whose sum is σ = 2548397376. Its totient is φ = 387481600.

The previous prime is 1023235033. The next prime is 1023235061. The reversal of 1023235040 is 405323201.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 370304 + ... + 373056.

It is an arithmetic number, because the mean of its divisors is an integer number (26545806).

Almost surely, 2^1023235040 is an apocalyptic number.

1023235040 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 1023235040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274198688).

1023235040 is an abundant number, since it is smaller than the sum of its proper divisors (1525162336).

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

1023235040 is a wasteful number, since it uses less digits than its factorization.

1023235040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892 (or 2884 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1023235040 is about 31988.0452669431. The cubic root of 1023235040 is about 1007.6857906191.

Adding to 1023235040 its reverse (405323201), we get a palindrome (1428558241).

The spelling of 1023235040 in words is "one billion, twenty-three million, two hundred thirty-five thousand, forty".