1234400368422 has 128 divisors (see below), whose sum is σ = 2765180436480. Its totient is φ = 364946762880.

The previous prime is 1234400368381. The next prime is 1234400368433. The reversal of 1234400368422 is 2248630044321.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62198433 + ... + 62218275.

It is an arithmetic number, because the mean of its divisors is an integer number (21602972160).

Almost surely, 2^{1234400368422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234400368422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382590218240).

1234400368422 is an abundant number, since it is smaller than the sum of its proper divisors (1530780068058).

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

1234400368422 is a wasteful number, since it uses less digits than its factorization.

1234400368422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20218.

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 1234400368422 in words is "one trillion, two hundred thirty-four billion, four hundred million, three hundred sixty-eight thousand, four hundred twenty-two".