1340477919 has 24 divisors (see below), whose sum is σ = 2123357184. Its totient is φ = 808146000.

The previous prime is 1340477891. The next prime is 1340477953. The reversal of 1340477919 is 9197740431.

It is not a de Polignac number, because 1340477919 - 2⁷ = 1340477791 is a prime.

It is a super-2 number, since 2×1340477919² = 3593762102653141122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340477969) 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 23 ways as a sum of consecutive naturals, for example, 16537 + ... + 54354.

It is an arithmetic number, because the mean of its divisors is an integer number (88473216).

Almost surely, 2^1340477919 is an apocalyptic number.

1340477919 is a deficient number, since it is larger than the sum of its proper divisors (782879265).

1340477919 is a wasteful number, since it uses less digits than its factorization.

1340477919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71099 (or 71096 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 1340477919 is about 36612.5377295811. The cubic root of 1340477919 is about 1102.6048238216.

The spelling of 1340477919 in words is "one billion, three hundred forty million, four hundred seventy-seven thousand, nine hundred nineteen".