1310229540 has 48 divisors (see below), whose sum is σ = 4076271360. Its totient is φ = 349394400.

The previous prime is 1310229521. The next prime is 1310229551. The reversal of 1310229540 is 459220131.

1310229540 is a `hidden beast` number, since 13 + 102 + 2 + 9 + 540 = 666.

It is a super-2 number, since 2×1310229540² = 3433402894977223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1212636 + ... + 1213715.

It is an arithmetic number, because the mean of its divisors is an integer number (84922320).

Almost surely, 2^1310229540 is an apocalyptic number.

1310229540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310229540 is an abundant number, since it is smaller than the sum of its proper divisors (2766041820).

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

1310229540 is a wasteful number, since it uses less digits than its factorization.

1310229540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426369 (or 2426361 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1310229540 is about 36197.0929771991. The cubic root of 1310229540 is about 1094.2480857831.

Adding to 1310229540 its reverse (459220131), we get a palindrome (1769449671).

The spelling of 1310229540 in words is "one billion, three hundred ten million, two hundred twenty-nine thousand, five hundred forty".