1487377920 has 320 divisors, whose sum is σ = 5523217920. Its totient is φ = 334430208.

The previous prime is 1487377919. The next prime is 1487377963. The reversal of 1487377920 is 297737841.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1487377920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3924291 + ... + 3924669.

It is an arithmetic number, because the mean of its divisors is an integer number (17260056).

Almost surely, 2^1487377920 is an apocalyptic number.

1487377920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1487377920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2761608960).

1487377920 is an abundant number, since it is smaller than the sum of its proper divisors (4035840000).

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

1487377920 is an equidigital number, since it uses as much as digits as its factorization.

1487377920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 1487377920 is about 38566.5388646687. The cubic root of 1487377920 is about 1141.4943775626.

The spelling of 1487377920 in words is "one billion, four hundred eighty-seven million, three hundred seventy-seven thousand, nine hundred twenty".