1340577 has 32 divisors (see below), whose sum is σ = 2338560. Its totient is φ = 743040.

The previous prime is 1340561. The next prime is 1340587. The reversal of 1340577 is 7750431.

It is not a de Polignac number, because 1340577 - 2⁴ = 1340561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1340577.

It is not an unprimeable number, because it can be changed into a prime (1340527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7663 + ... + 7835.

It is an arithmetic number, because the mean of its divisors is an integer number (73080).

2^1340577 is an apocalyptic number.

It is an amenable number.

1340577 is a deficient number, since it is larger than the sum of its proper divisors (997983).

1340577 is a wasteful number, since it uses less digits than its factorization.

1340577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 1340577 is about 1157.8328894966. The cubic root of 1340577 is about 110.2631989381.

The spelling of 1340577 in words is "one million, three hundred forty thousand, five hundred seventy-seven".