1488278920 has 32 divisors (see below), whose sum is σ = 3350594520. Its totient is φ = 594961920.

The previous prime is 1488278903. The next prime is 1488278921. The reversal of 1488278920 is 298728841.

It can be written as a sum of positive squares in 4 ways, for example, as 731918916 + 756360004 = 27054^2 + 27502^2 .

It is not an unprimeable number, because it can be changed into a prime (1488278921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64444 + ... + 84436.

Almost surely, 2^1488278920 is an apocalyptic number.

1488278920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1488278920 is an abundant number, since it is smaller than the sum of its proper divisors (1862315600).

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

1488278920 is a wasteful number, since it uses less digits than its factorization.

1488278920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21865 (or 21861 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 1488278920 is about 38578.2182066513. The cubic root of 1488278920 is about 1141.7248231041.

The spelling of 1488278920 in words is "one billion, four hundred eighty-eight million, two hundred seventy-eight thousand, nine hundred twenty".