1302402240 has 224 divisors, whose sum is σ = 4653808320. Its totient is φ = 347120640.

The previous prime is 1302402221. The next prime is 1302402259. The reversal of 1302402240 is 422042031.

It is an interprime number because it is at equal distance from previous prime (1302402221) and next prime (1302402259).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 698910 + ... + 700770.

It is an arithmetic number, because the mean of its divisors is an integer number (20775930).

Almost surely, 2^1302402240 is an apocalyptic number.

1302402240 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 1302402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2326904160).

1302402240 is an abundant number, since it is smaller than the sum of its proper divisors (3351406080).

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

1302402240 is an frugal number, since it uses more digits than its factorization.

1302402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1871 counting only the distinct ones).

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

The square root of 1302402240 is about 36088.8104542114. The cubic root of 1302402240 is about 1092.0647226461.

Adding to 1302402240 its reverse (422042031), we get a palindrome (1724444271).

The spelling of 1302402240 in words is "one billion, three hundred two million, four hundred two thousand, two hundred forty".