1340040230 has 16 divisors (see below), whose sum is σ = 2421248544. Its totient is φ = 533976960.

The previous prime is 1340040209. The next prime is 1340040259. The reversal of 1340040230 is 320400431.

It is a junction number, because it is equal to n+sod(n) for n = 1340040199 and 1340040208.

It is a congruent number.

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, 252131 + ... + 257390.

It is an arithmetic number, because the mean of its divisors is an integer number (151328034).

Almost surely, 2^1340040230 is an apocalyptic number.

1340040230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340040230 is a deficient number, since it is larger than the sum of its proper divisors (1081208314).

1340040230 is a wasteful number, since it uses less digits than its factorization.

1340040230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509791.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1340040230 is about 36606.5599312473. The cubic root of 1340040230 is about 1102.4848043045.

Adding to 1340040230 its reverse (320400431), we get a palindrome (1660440661).

The spelling of 1340040230 in words is "one billion, three hundred forty million, forty thousand, two hundred thirty".