1488990820 has 24 divisors (see below), whose sum is σ = 3129956928. Its totient is φ = 595010400.

The previous prime is 1488990787. The next prime is 1488990863. The reversal of 1488990820 is 280998841.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15486 + ... + 56725.

It is an arithmetic number, because the mean of its divisors is an integer number (130414872).

Almost surely, 2^1488990820 is an apocalyptic number.

1488990820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1488990820 is an abundant number, since it is smaller than the sum of its proper divisors (1640966108).

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

1488990820 is a wasteful number, since it uses less digits than its factorization.

1488990820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73251 (or 73249 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 1488990820 is about 38587.4438127223. The cubic root of 1488990820 is about 1141.9068374493.

The spelling of 1488990820 in words is "one billion, four hundred eighty-eight million, nine hundred ninety thousand, eight hundred twenty".