1340404541 has 8 divisors (see below), whose sum is σ = 1533139200. Its totient is φ = 1147981968.

The previous prime is 1340404537. The next prime is 1340404547. The reversal of 1340404541 is 1454040431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340404541 - 2² = 1340404537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340404541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340404547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68741 + ... + 86058.

It is an arithmetic number, because the mean of its divisors is an integer number (191642400).

Almost surely, 2^1340404541 is an apocalyptic number.

It is an amenable number.

1340404541 is a deficient number, since it is larger than the sum of its proper divisors (192734659).

1340404541 is a wasteful number, since it uses less digits than its factorization.

1340404541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156043.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1340404541 is about 36611.5356274494. The cubic root of 1340404541 is about 1102.5847045264.

Adding to 1340404541 its reverse (1454040431), we get a palindrome (2794444972).

The spelling of 1340404541 in words is "one billion, three hundred forty million, four hundred four thousand, five hundred forty-one".