1340687354 has 16 divisors (see below), whose sum is σ = 2156284800. Its totient is φ = 622924224.

The previous prime is 1340687347. The next prime is 1340687357. The reversal of 1340687354 is 4537860431.

It is not an unprimeable number, because it can be changed into a prime (1340687357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246884 + ... + 252255.

It is an arithmetic number, because the mean of its divisors is an integer number (134767800).

Almost surely, 2^1340687354 is an apocalyptic number.

1340687354 is a deficient number, since it is larger than the sum of its proper divisors (815597446).

1340687354 is a wasteful number, since it uses less digits than its factorization.

1340687354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499237.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 1340687354 is about 36615.3977719757. The cubic root of 1340687354 is about 1102.6622441423.

The spelling of 1340687354 in words is "one billion, three hundred forty million, six hundred eighty-seven thousand, three hundred fifty-four".