1340919 has 6 divisors (see below), whose sum is σ = 1936896. Its totient is φ = 893940.

The previous prime is 1340903. The next prime is 1340929. The reversal of 1340919 is 9190431.

It is not a de Polignac number, because 1340919 - 2⁴ = 1340903 is a prime.

It is a super-2 number, since 2×1340919² = 3596127529122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1340892 and 1340901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74487 + ... + 74504.

It is an arithmetic number, because the mean of its divisors is an integer number (322816).

2^1340919 is an apocalyptic number.

1340919 is a deficient number, since it is larger than the sum of its proper divisors (595977).

1340919 is a wasteful number, since it uses less digits than its factorization.

1340919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148997 (or 148994 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1340919 is about 1157.9805697852. The cubic root of 1340919 is about 110.2725747038.

The spelling of 1340919 in words is "one million, three hundred forty thousand, nine hundred nineteen".