1340345154 has 32 divisors (see below), whose sum is σ = 2742128640. Its totient is φ = 436572752.

The previous prime is 1340345147. The next prime is 1340345159. The reversal of 1340345154 is 4515430431.

It is not an unprimeable number, because it can be changed into a prime (1340345159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189127 + ... + 196085.

It is an arithmetic number, because the mean of its divisors is an integer number (85691520).

Almost surely, 2^1340345154 is an apocalyptic number.

1340345154 is an abundant number, since it is smaller than the sum of its proper divisors (1401783486).

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

1340345154 is a wasteful number, since it uses less digits than its factorization.

1340345154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7694.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1340345154 is about 36610.7245762768. The cubic root of 1340345154 is about 1102.5684208441.

Adding to 1340345154 its reverse (4515430431), we get a palindrome (5855775585).

The spelling of 1340345154 in words is "one billion, three hundred forty million, three hundred forty-five thousand, one hundred fifty-four".