488507381 has 8 divisors (see below), whose sum is σ = 490470840. Its totient is φ = 486548928.

The previous prime is 488507363. The next prime is 488507387. The reversal of 488507381 is 183705884.

It can be written as a sum of positive squares in 4 ways, for example, as 3010225 + 485497156 = 1735^2 + 22034^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 488507381 - 2¹⁰ = 488506357 is a prime.

It is a super-2 number, since 2×488507381² = 477278922582958322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488507387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394295 + ... + 395531.

It is an arithmetic number, because the mean of its divisors is an integer number (61308855).

Almost surely, 2^488507381 is an apocalyptic number.

It is an amenable number.

488507381 is a deficient number, since it is larger than the sum of its proper divisors (1963459).

488507381 is a wasteful number, since it uses less digits than its factorization.

488507381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 488507381 is about 22102.2030802361. The cubic root of 488507381 is about 787.5721978319.

The spelling of 488507381 in words is "four hundred eighty-eight million, five hundred seven thousand, three hundred eighty-one".