1823320988 has 12 divisors (see below), whose sum is σ = 3243120552. Its totient is φ = 896715120.

The previous prime is 1823320979. The next prime is 1823321041. The reversal of 1823320988 is 8890233281.

It is a super-2 number, since 2×1823320988² = 6648998850562592288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3736070 + ... + 3736557.

It is an arithmetic number, because the mean of its divisors is an integer number (270260046).

Almost surely, 2^1823320988 is an apocalyptic number.

It is an amenable number.

1823320988 is a deficient number, since it is larger than the sum of its proper divisors (1419799564).

1823320988 is a wasteful number, since it uses less digits than its factorization.

1823320988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7472692 (or 7472690 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 1823320988 is about 42700.3628556011. The cubic root of 1823320988 is about 1221.6713159242.

The spelling of 1823320988 in words is "one billion, eight hundred twenty-three million, three hundred twenty thousand, nine hundred eighty-eight".