1340403424402 has 64 divisors (see below), whose sum is σ = 2456379095040. Its totient is φ = 536182617600.

The previous prime is 1340403424387. The next prime is 1340403424453. The reversal of 1340403424402 is 2044243040431.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11786838 + ... + 11900014.

It is an arithmetic number, because the mean of its divisors is an integer number (38380923360).

Almost surely, 2^{1340403424402} is an apocalyptic number.

1340403424402 is a deficient number, since it is larger than the sum of its proper divisors (1115975670638).

1340403424402 is a wasteful number, since it uses less digits than its factorization.

1340403424402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114187.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 1340403424402 its reverse (2044243040431), we get a palindrome (3384646464833).

The spelling of 1340403424402 in words is "one trillion, three hundred forty billion, four hundred three million, four hundred twenty-four thousand, four hundred two".