58640220 has 144 divisors (see below), whose sum is σ = 190179360. Its totient is φ = 14999040.

The previous prime is 58640201. The next prime is 58640273. The reversal of 58640220 is 2204685.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 518884 + ... + 518996.

It is an arithmetic number, because the mean of its divisors is an integer number (1320690).

Almost surely, 2^58640220 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 58640220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95089680).

58640220 is an abundant number, since it is smaller than the sum of its proper divisors (131539140).

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

58640220 is a wasteful number, since it uses less digits than its factorization.

58640220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 58640220 is about 7657.6902522889. The cubic root of 58640220 is about 388.5067156455.

The spelling of 58640220 in words is "fifty-eight million, six hundred forty thousand, two hundred twenty".