1988000460 has 72 divisors (see below), whose sum is σ = 6238224720. Its totient is φ = 511851648.

The previous prime is 1988000453. The next prime is 1988000461. The reversal of 1988000460 is 640008891.

It is a happy number.

1988000460 is a `hidden beast` number, since 198 + 8 + 0 + 0 + 0 + 460 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1988000461) 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, 185202 + ... + 195641.

It is an arithmetic number, because the mean of its divisors is an integer number (86642010).

Almost surely, 2^1988000460 is an apocalyptic number.

1988000460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1988000460 is an abundant number, since it is smaller than the sum of its proper divisors (4250224260).

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

1988000460 is a wasteful number, since it uses less digits than its factorization.

1988000460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380887 (or 380882 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1988000460 is about 44586.9987776706. The cubic root of 1988000460 is about 1257.3962482267.

The spelling of 1988000460 in words is "one billion, nine hundred eighty-eight million, four hundred sixty", and thus it is an aban number.