1302222240 has 288 divisors, whose sum is σ = 4882550400. Its totient is φ = 313436160.

The previous prime is 1302222227. The next prime is 1302222263. The reversal of 1302222240 is 422222031.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3627181 + ... + 3627539.

It is an arithmetic number, because the mean of its divisors is an integer number (16953300).

Almost surely, 2^1302222240 is an apocalyptic number.

1302222240 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 1302222240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2441275200).

1302222240 is an abundant number, since it is smaller than the sum of its proper divisors (3580328160).

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

1302222240 is a wasteful number, since it uses less digits than its factorization.

1302222240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1302222240 is about 36086.3165202546. The cubic root of 1302222240 is about 1092.0144103078.

Adding to 1302222240 its reverse (422222031), we get a palindrome (1724444271).

The spelling of 1302222240 in words is "one billion, three hundred two million, two hundred twenty-two thousand, two hundred forty".