1801965348 has 36 divisors (see below), whose sum is σ = 4595287788. Its totient is φ = 595338240.

The previous prime is 1801965343. The next prime is 1801965359. The reversal of 1801965348 is 8435691081.

It can be written as a sum of positive squares in 2 ways, for example, as 14197824 + 1787767524 = 3768^2 + 42282^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1801965348² = 6494158230785522208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1801965343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217413 + ... + 225548.

It is an arithmetic number, because the mean of its divisors is an integer number (127646883).

Almost surely, 2^1801965348 is an apocalyptic number.

1801965348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1801965348 is an abundant number, since it is smaller than the sum of its proper divisors (2793322440).

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

1801965348 is a wasteful number, since it uses less digits than its factorization.

1801965348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443084 (or 443079 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1801965348 is about 42449.5624005713. The cubic root of 1801965348 is about 1216.8829656182.

The spelling of 1801965348 in words is "one billion, eight hundred one million, nine hundred sixty-five thousand, three hundred forty-eight".