1988476404 has 24 divisors (see below), whose sum is σ = 4641526848. Its totient is φ = 662575680.

The previous prime is 1988476403. The next prime is 1988476409. The reversal of 1988476404 is 4046748891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988476403) 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, 3489 + ... + 63159.

It is an arithmetic number, because the mean of its divisors is an integer number (193396952).

Almost surely, 2^1988476404 is an apocalyptic number.

It is an amenable number.

1988476404 is an abundant number, since it is smaller than the sum of its proper divisors (2653050444).

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

1988476404 is a wasteful number, since it uses less digits than its factorization.

1988476404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62455 (or 62453 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 1988476404 is about 44592.3357091776. The cubic root of 1988476404 is about 1257.4965839594.

The spelling of 1988476404 in words is "one billion, nine hundred eighty-eight million, four hundred seventy-six thousand, four hundred four".