1340229 has 16 divisors (see below), whose sum is σ = 2064960. Its totient is φ = 764160.

The previous prime is 1340221. The next prime is 1340237. The reversal of 1340229 is 9220431.

1340229 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (1340221) and next prime (1340237).

It is not a de Polignac number, because 1340229 - 2³ = 1340221 is a prime.

1340229 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634 + ... + 1755.

It is an arithmetic number, because the mean of its divisors is an integer number (129060).

2^1340229 is an apocalyptic number.

It is an amenable number.

1340229 is a deficient number, since it is larger than the sum of its proper divisors (724731).

1340229 is a wasteful number, since it uses less digits than its factorization.

1340229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1340229 is about 1157.6825989882. The cubic root of 1340229 is about 110.2536570483.

It can be divided in two parts, 13402 and 29, that added together give a palindrome (13431).

The spelling of 1340229 in words is "one million, three hundred forty thousand, two hundred twenty-nine".