58021440 has 112 divisors (see below), whose sum is σ = 193974720. Its totient is φ = 14653440.

The previous prime is 58021409. The next prime is 58021441. The reversal of 58021440 is 4412085.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 58021440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58021441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16650 + ... + 19830.

Almost surely, 2^58021440 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 58021440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96987360).

58021440 is an abundant number, since it is smaller than the sum of its proper divisors (135953280).

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

58021440 is a wasteful number, since it uses less digits than its factorization.

58021440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 58021440 is about 7617.1805807661. The cubic root of 58021440 is about 387.1353545060.

The spelling of 58021440 in words is "fifty-eight million, twenty-one thousand, four hundred forty".