1023202240 has 56 divisors (see below), whose sum is σ = 2449019232. Its totient is φ = 407178240.

The previous prime is 1023202211. The next prime is 1023202241. The reversal of 1023202240 is 422023201.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023202241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54925 + ... + 71155.

Almost surely, 2^1023202240 is an apocalyptic number.

1023202240 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 1023202240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1224509616).

1023202240 is an abundant number, since it is smaller than the sum of its proper divisors (1425816992).

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

1023202240 is a wasteful number, since it uses less digits than its factorization.

1023202240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16445 (or 16435 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1023202240 is about 31987.5325713003. The cubic root of 1023202240 is about 1007.6750233155.

Adding to 1023202240 its reverse (422023201), we get a palindrome (1445225441).

The spelling of 1023202240 in words is "one billion, twenty-three million, two hundred two thousand, two hundred forty".