1798629440 has 56 divisors (see below), whose sum is σ = 4469221440. Its totient is φ = 688168448.

The previous prime is 1798629421. The next prime is 1798629449. The reversal of 1798629440 is 449268971.

It is not an unprimeable number, because it can be changed into a prime (1798629449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114830 + ... + 129549.

Almost surely, 2^1798629440 is an apocalyptic number.

1798629440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1798629440 is an abundant number, since it is smaller than the sum of its proper divisors (2670592000).

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

1798629440 is a wasteful number, since it uses less digits than its factorization.

1798629440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244419 (or 244409 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 1798629440 is about 42410.2515908595. The cubic root of 1798629440 is about 1216.1315791366.

The spelling of 1798629440 in words is "one billion, seven hundred ninety-eight million, six hundred twenty-nine thousand, four hundred forty".