487019840 has 28 divisors (see below), whose sum is σ = 1159716756. Its totient is φ = 194807808.

The previous prime is 487019833. The next prime is 487019843. The reversal of 487019840 is 48910784.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 220938496 + 266081344 = 14864^2 + 16312^2 .

It is a super-3 number, since 3×487019840³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487019843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760649 + ... + 761288.

Almost surely, 2^487019840 is an apocalyptic number.

487019840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

487019840 is an abundant number, since it is smaller than the sum of its proper divisors (672696916).

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

487019840 is a wasteful number, since it uses less digits than its factorization.

487019840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521954 (or 1521944 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 487019840 is about 22068.5260042441. The cubic root of 487019840 is about 786.7719799000.

The spelling of 487019840 in words is "four hundred eighty-seven million, nineteen thousand, eight hundred forty".