1303010240 has 56 divisors (see below), whose sum is σ = 3546055392. Its totient is φ = 446745600.

The previous prime is 1303010239. The next prime is 1303010249. The reversal of 1303010240 is 420103031.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303010249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288611 + ... + 293090.

Almost surely, 2^1303010240 is an apocalyptic number.

1303010240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303010240 is an abundant number, since it is smaller than the sum of its proper divisors (2243045152).

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

1303010240 is an equidigital number, since it uses as much as digits as its factorization.

1303010240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581725 (or 581715 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1303010240 is about 36097.2331349648. The cubic root of 1303010240 is about 1092.2346322784.

Adding to 1303010240 its reverse (420103031), we get a palindrome (1723113271).

The spelling of 1303010240 in words is "one billion, three hundred three million, ten thousand, two hundred forty".