1305401154240 has 56 divisors (see below), whose sum is σ = 4144648667760. Its totient is φ = 348106974208.

The previous prime is 1305401154223. The next prime is 1305401154241. The reversal of 1305401154240 is 424511045031.

It is a super-2 number, since 2×1305401154240² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1305401154198 and 1305401154207.

It is not an unprimeable number, because it can be changed into a prime (1305401154241) 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, 679895475 + ... + 679897394.

Almost surely, 2^{1305401154240} is an apocalyptic number.

1305401154240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305401154240 is an abundant number, since it is smaller than the sum of its proper divisors (2839247513520).

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

1305401154240 is a wasteful number, since it uses less digits than its factorization.

1305401154240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359792889 (or 1359792879 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1305401154240 its reverse (424511045031), we get a palindrome (1729912199271).

The spelling of 1305401154240 in words is "one trillion, three hundred five billion, four hundred one million, one hundred fifty-four thousand, two hundred forty".