1798400422 has 16 divisors (see below), whose sum is σ = 3320124192. Its totient is φ = 711455040.

The previous prime is 1798400413. The next prime is 1798400423. The reversal of 1798400422 is 2240048971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798400423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4940479 + ... + 4940842.

It is an arithmetic number, because the mean of its divisors is an integer number (207507762).

Almost surely, 2^1798400422 is an apocalyptic number.

1798400422 is a deficient number, since it is larger than the sum of its proper divisors (1521723770).

1798400422 is a wasteful number, since it uses less digits than its factorization.

1798400422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9881343.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1798400422 is about 42407.5514737647. The cubic root of 1798400422 is about 1216.0799606028.

The spelling of 1798400422 in words is "one billion, seven hundred ninety-eight million, four hundred thousand, four hundred twenty-two".