488638731 has 24 divisors (see below), whose sum is σ = 770327184. Its totient is φ = 274639680.

The previous prime is 488638691. The next prime is 488638753. The reversal of 488638731 is 137836884.

It is not a de Polignac number, because 488638731 - 2¹³ = 488630539 is a prime.

It is a super-2 number, since 2×488638731² = 477535618866580722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (488678731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18280 + ... + 36213.

It is an arithmetic number, because the mean of its divisors is an integer number (32096966).

Almost surely, 2^488638731 is an apocalyptic number.

488638731 is a deficient number, since it is larger than the sum of its proper divisors (281688453).

488638731 is a wasteful number, since it uses less digits than its factorization.

488638731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54571 (or 54564 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 488638731 is about 22105.1743037688. The cubic root of 488638731 is about 787.6427790499.

The spelling of 488638731 in words is "four hundred eighty-eight million, six hundred thirty-eight thousand, seven hundred thirty-one".