1351056240 has 80 divisors (see below), whose sum is σ = 4653645600. Its totient is φ = 360281088.

The previous prime is 1351056169. The next prime is 1351056251. The reversal of 1351056240 is 426501531.

1351056240 is a `hidden beast` number, since 1 + 35 + 1 + 0 + 5 + 624 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

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, 310585 + ... + 314904.

It is an arithmetic number, because the mean of its divisors is an integer number (58170570).

Almost surely, 2^1351056240 is an apocalyptic number.

1351056240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351056240 is an abundant number, since it is smaller than the sum of its proper divisors (3302589360).

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

1351056240 is a wasteful number, since it uses less digits than its factorization.

1351056240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625511 (or 625499 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1351056240 is about 36756.7169371803. The cubic root of 1351056240 is about 1105.4976130766.

Adding to 1351056240 its reverse (426501531), we get a palindrome (1777557771).

The spelling of 1351056240 in words is "one billion, three hundred fifty-one million, fifty-six thousand, two hundred forty".