1348400430440 has 64 divisors (see below), whose sum is σ = 3484739232000. Its totient is φ = 459985540608.

The previous prime is 1348400430439. The next prime is 1348400430473. The reversal of 1348400430440 is 440340048431.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1348400430440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12044069 + ... + 12155508.

It is an arithmetic number, because the mean of its divisors is an integer number (54449050500).

Almost surely, 2^{1348400430440} is an apocalyptic number.

1348400430440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1348400430440 is an abundant number, since it is smaller than the sum of its proper divisors (2136338801560).

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

1348400430440 is a wasteful number, since it uses less digits than its factorization.

1348400430440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24199794 (or 24199790 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 1348400430440 its reverse (440340048431), we get a palindrome (1788740478871).

The spelling of 1348400430440 in words is "one trillion, three hundred forty-eight billion, four hundred million, four hundred thirty thousand, four hundred forty".