1988000536 has 32 divisors (see below), whose sum is σ = 3957282000. Its totient is φ = 933037056.

The previous prime is 1988000461. The next prime is 1988000537. The reversal of 1988000536 is 6350008891.

It is a happy number.

It is a super-2 number, since 2×1988000536² = 7904292262272574592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988000537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32260 + ... + 70828.

Almost surely, 2^1988000536 is an apocalyptic number.

It is an amenable number.

1988000536 is a deficient number, since it is larger than the sum of its proper divisors (1969281464).

1988000536 is a wasteful number, since it uses less digits than its factorization.

1988000536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38971 (or 38967 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1988000536 is about 44586.9996299370. Note that the first 3 decimals coincide. The cubic root of 1988000536 is about 1257.3962642499.

The spelling of 1988000536 in words is "one billion, nine hundred eighty-eight million, five hundred thirty-six", and thus it is an aban number.