1340221234 has 16 divisors (see below), whose sum is σ = 2225824416. Its totient is φ = 600098400.

The previous prime is 1340221213. The next prime is 1340221273. The reversal of 1340221234 is 4321220431.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453147 + ... + 456094.

It is an arithmetic number, because the mean of its divisors is an integer number (139114026).

Almost surely, 2^1340221234 is an apocalyptic number.

1340221234 is a deficient number, since it is larger than the sum of its proper divisors (885603182).

1340221234 is a wasteful number, since it uses less digits than its factorization.

1340221234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909321.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1340221234 is about 36609.0321368921. The cubic root of 1340221234 is about 1102.5344409176.

Adding to 1340221234 its reverse (4321220431), we get a palindrome (5661441665).

The spelling of 1340221234 in words is "one billion, three hundred forty million, two hundred twenty-one thousand, two hundred thirty-four".