1798926426 has 48 divisors (see below), whose sum is σ = 4261813920. Its totient is φ = 543872160.

The previous prime is 1798926419. The next prime is 1798926427. The reversal of 1798926426 is 6246298971.

It is a super-2 number, since 2×1798926426² = 6472272572322266952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1798926427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77460 + ... + 97968.

It is an arithmetic number, because the mean of its divisors is an integer number (88787790).

Almost surely, 2^1798926426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1798926426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2130906960).

1798926426 is an abundant number, since it is smaller than the sum of its proper divisors (2462887494).

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

1798926426 is a wasteful number, since it uses less digits than its factorization.

1798926426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20971 (or 20968 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 1798926426 is about 42413.7527931684. The cubic root of 1798926426 is about 1216.1985105027.

The spelling of 1798926426 in words is "one billion, seven hundred ninety-eight million, nine hundred twenty-six thousand, four hundred twenty-six".