1801222376 has 8 divisors (see below), whose sum is σ = 3377291970. Its totient is φ = 900611184.

The previous prime is 1801222361. The next prime is 1801222429. The reversal of 1801222376 is 6732221081.

It can be written as a sum of positive squares in only one way, i.e., 1251319876 + 549902500 = 35374^2 + 23450^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112576391 + ... + 112576406.

Almost surely, 2^1801222376 is an apocalyptic number.

It is an amenable number.

1801222376 is a deficient number, since it is larger than the sum of its proper divisors (1576069594).

1801222376 is a wasteful number, since it uses less digits than its factorization.

1801222376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225152803 (or 225152799 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1801222376 is about 42440.8102655922. The cubic root of 1801222376 is about 1216.7156974632.

The spelling of 1801222376 in words is "one billion, eight hundred one million, two hundred twenty-two thousand, three hundred seventy-six".