58138440 has 32 divisors (see below), whose sum is σ = 174415680. Its totient is φ = 15503552.

The previous prime is 58138439. The next prime is 58138463. The reversal of 58138440 is 4483185.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242124 + ... + 242363.

It is an arithmetic number, because the mean of its divisors is an integer number (5450490).

Almost surely, 2^58138440 is an apocalyptic number.

It is an amenable number.

58138440 is an abundant number, since it is smaller than the sum of its proper divisors (116277240).

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

58138440 is a wasteful number, since it uses less digits than its factorization.

58138440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484501 (or 484497 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 58138440 is about 7624.8567199653. The cubic root of 58138440 is about 387.3953987524.

The spelling of 58138440 in words is "fifty-eight million, one hundred thirty-eight thousand, four hundred forty".