538651488 has 24 divisors (see below), whose sum is σ = 1413960408. Its totient is φ = 179550464.

The previous prime is 538651471. The next prime is 538651507. The reversal of 538651488 is 884156835.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×538651488² = 580290851049228288, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2805381 + ... + 2805572.

It is an arithmetic number, because the mean of its divisors is an integer number (58915017).

Almost surely, 2^538651488 is an apocalyptic number.

It is an amenable number.

538651488 is an abundant number, since it is smaller than the sum of its proper divisors (875308920).

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

538651488 is a wasteful number, since it uses less digits than its factorization.

538651488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610966 (or 5610958 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 538651488 is about 23208.8665815459. The cubic root of 538651488 is about 813.6468635053.

The spelling of 538651488 in words is "five hundred thirty-eight million, six hundred fifty-one thousand, four hundred eighty-eight".