1340211402 has 24 divisors (see below), whose sum is σ = 2904501600. Its totient is φ = 446627880.

The previous prime is 1340211391. The next prime is 1340211421. The reversal of 1340211402 is 2041120431.

1340211402 is a `hidden beast` number, since 13 + 40 + 211 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105577 + ... + 117587.

It is an arithmetic number, because the mean of its divisors is an integer number (121020900).

Almost surely, 2^1340211402 is an apocalyptic number.

1340211402 is an abundant number, since it is smaller than the sum of its proper divisors (1564290198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340211402 is a wasteful number, since it uses less digits than its factorization.

1340211402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18218 (or 18215 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1340211402 is about 36608.8978528445. The cubic root of 1340211402 is about 1102.5317448092.

Adding to 1340211402 its reverse (2041120431), we get a palindrome (3381331833).

The spelling of 1340211402 in words is "one billion, three hundred forty million, two hundred eleven thousand, four hundred two".