1340024004 has 36 divisors (see below), whose sum is σ = 3695218800. Its totient is φ = 406067760.

The previous prime is 1340023939. The next prime is 1340024017. The reversal of 1340024004 is 4004200431.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1691554 + ... + 1692345.

Almost surely, 2^1340024004 is an apocalyptic number.

It is an amenable number.

1340024004 is an abundant number, since it is smaller than the sum of its proper divisors (2355194796).

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

1340024004 is a wasteful number, since it uses less digits than its factorization.

1340024004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383920 (or 3383915 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1340024004 is about 36606.3383036326. The cubic root of 1340024004 is about 1102.4803544404.

Adding to 1340024004 its reverse (4004200431), we get a palindrome (5344224435).

The spelling of 1340024004 in words is "one billion, three hundred forty million, twenty-four thousand, four".