1362644240 has 40 divisors (see below), whose sum is σ = 3174325848. Its totient is φ = 543994880.

The previous prime is 1362644237. The next prime is 1362644249. The reversal of 1362644240 is 424462631.

It can be written as a sum of positive squares in 4 ways, for example, as 15460624 + 1347183616 = 3932^2 + 36704^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1362644197 and 1362644206.

It is not an unprimeable number, because it can be changed into a prime (1362644249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25334 + ... + 58026.

Almost surely, 2^1362644240 is an apocalyptic number.

1362644240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1362644240 is an abundant number, since it is smaller than the sum of its proper divisors (1811681608).

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

1362644240 is a wasteful number, since it uses less digits than its factorization.

1362644240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33227 (or 33221 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 1362644240 is about 36914.0114319753. The cubic root of 1362644240 is about 1108.6492348180.

The spelling of 1362644240 in words is "one billion, three hundred sixty-two million, six hundred forty-four thousand, two hundred forty".