1340554385 has 8 divisors (see below), whose sum is σ = 1612400256. Its totient is φ = 1069953520.

The previous prime is 1340554381. The next prime is 1340554393. The reversal of 1340554385 is 5834550431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340554385 - 2² = 1340554381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340554381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308879 + ... + 313188.

It is an arithmetic number, because the mean of its divisors is an integer number (201550032).

Almost surely, 2^1340554385 is an apocalyptic number.

It is an amenable number.

1340554385 is a deficient number, since it is larger than the sum of its proper divisors (271845871).

1340554385 is an equidigital number, since it uses as much as digits as its factorization.

1340554385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622503.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 1340554385 is about 36613.5819744531. The cubic root of 1340554385 is about 1102.6257890252.

The spelling of 1340554385 in words is "one billion, three hundred forty million, five hundred fifty-four thousand, three hundred eighty-five".