1364673840 has 40 divisors (see below), whose sum is σ = 4230489648. Its totient is φ = 363912960.

The previous prime is 1364673823. The next prime is 1364673859. The reversal of 1364673840 is 483764631.

It is a happy number.

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 = 1364673792 and 1364673801.

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 7 ways as a sum of consecutive naturals, for example, 2842831 + ... + 2843310.

Almost surely, 2^1364673840 is an apocalyptic number.

1364673840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1364673840 is an abundant number, since it is smaller than the sum of its proper divisors (2865815808).

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

1364673840 is a wasteful number, since it uses less digits than its factorization.

1364673840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686157 (or 5686151 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 1364673840 is about 36941.4921192959. The cubic root of 1364673840 is about 1109.1993902181.

The spelling of 1364673840 in words is "one billion, three hundred sixty-four million, six hundred seventy-three thousand, eight hundred forty".