1340204433402 has 96 divisors (see below), whose sum is σ = 3015483871680. Its totient is φ = 395581570560.

The previous prime is 1340204433389. The next prime is 1340204433431. The reversal of 1340204433402 is 2043344020431.

It is a happy number.

It is a super-2 number, since 2×1340204433402² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1340204433402.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3087849 + ... + 3495027.

It is an arithmetic number, because the mean of its divisors is an integer number (31411290330).

Almost surely, 2^{1340204433402} is an apocalyptic number.

1340204433402 is an abundant number, since it is smaller than the sum of its proper divisors (1675279438278).

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

1340204433402 is a wasteful number, since it uses less digits than its factorization.

1340204433402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407308 (or 407285 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 1340204433402 its reverse (2043344020431), we get a palindrome (3383548453833).

The spelling of 1340204433402 in words is "one trillion, three hundred forty billion, two hundred four million, four hundred thirty-three thousand, four hundred two".