58031220 has 144 divisors (see below), whose sum is σ = 180774720. Its totient is φ = 13897728.

The previous prime is 58031219. The next prime is 58031227. The reversal of 58031220 is 2213085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58031227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 598212 + ... + 598308.

It is an arithmetic number, because the mean of its divisors is an integer number (1255380).

Almost surely, 2^58031220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 58031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90387360).

58031220 is an abundant number, since it is smaller than the sum of its proper divisors (122743500).

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

58031220 is a wasteful number, since it uses less digits than its factorization.

58031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 58031220 is about 7617.8225235299. The cubic root of 58031220 is about 387.1571049202.

The spelling of 58031220 in words is "fifty-eight million, thirty-one thousand, two hundred twenty".