1356047240 has 16 divisors (see below), whose sum is σ = 3051106380. Its totient is φ = 542418880.

The previous prime is 1356047239. The next prime is 1356047339. The reversal of 1356047240 is 427406531.

It can be written as a sum of positive squares in 2 ways, for example, as 1346449636 + 9597604 = 36694^2 + 3098^2 .

It is a super-2 number, since 2×1356047240² = 3677728234223235200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1356047197 and 1356047206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16950551 + ... + 16950630.

Almost surely, 2^1356047240 is an apocalyptic number.

1356047240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1356047240 is an abundant number, since it is smaller than the sum of its proper divisors (1695059140).

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

1356047240 is a wasteful number, since it uses less digits than its factorization.

1356047240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33901192 (or 33901188 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 1356047240 is about 36824.5467046100. The cubic root of 1356047240 is about 1106.8572303731.

The spelling of 1356047240 in words is "one billion, three hundred fifty-six million, forty-seven thousand, two hundred forty".