1340989054 has 16 divisors (see below), whose sum is σ = 2084951808. Its totient is φ = 646431192.

The previous prime is 1340989021. The next prime is 1340989057. The reversal of 1340989054 is 4509890431.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340989054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340989057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100164 + ... + 112759.

It is an arithmetic number, because the mean of its divisors is an integer number (130309488).

Almost surely, 2^1340989054 is an apocalyptic number.

1340989054 is a deficient number, since it is larger than the sum of its proper divisors (743962754).

1340989054 is a wasteful number, since it uses less digits than its factorization.

1340989054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213039.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1340989054 is about 36619.5173916861. The cubic root of 1340989054 is about 1102.7449500386.

The spelling of 1340989054 in words is "one billion, three hundred forty million, nine hundred eighty-nine thousand, fifty-four".