1302231040 has 144 divisors (see below), whose sum is σ = 3437736120. Its totient is φ = 473088000.

The previous prime is 1302231037. The next prime is 1302231061. The reversal of 1302231040 is 401322031.

It is a happy number.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1238515 + ... + 1239565.

Almost surely, 2^1302231040 is an apocalyptic number.

1302231040 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 1302231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1718868060).

1302231040 is an abundant number, since it is smaller than the sum of its proper divisors (2135505080).

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

1302231040 is a wasteful number, since it uses less digits than its factorization.

1302231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1302231040 is about 36086.4384499219. The cubic root of 1302231040 is about 1092.0168701299.

Adding to 1302231040 its reverse (401322031), we get a palindrome (1703553071).

Subtracting from 1302231040 its reverse (401322031), we obtain a palindrome (900909009).

The spelling of 1302231040 in words is "one billion, three hundred two million, two hundred thirty-one thousand, forty".