1340911461 has 4 divisors (see below), whose sum is σ = 1787881952. Its totient is φ = 893940972.

The previous prime is 1340911421. The next prime is 1340911471. The reversal of 1340911461 is 1641190431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1340911461 - 2¹¹ = 1340909413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340911421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223485241 + ... + 223485246.

It is an arithmetic number, because the mean of its divisors is an integer number (446970488).

Almost surely, 2^1340911461 is an apocalyptic number.

It is an amenable number.

1340911461 is a deficient number, since it is larger than the sum of its proper divisors (446970491).

1340911461 is an equidigital number, since it uses as much as digits as its factorization.

1340911461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446970490.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1340911461 is about 36618.4579276627. The cubic root of 1340911461 is about 1102.7236804294.

The spelling of 1340911461 in words is "one billion, three hundred forty million, nine hundred eleven thousand, four hundred sixty-one".