60021444 has 96 divisors (see below), whose sum is σ = 170827776. Its totient is φ = 16030080.

The previous prime is 60021439. The next prime is 60021463. The reversal of 60021444 is 44412006.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 60021444.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90474 + ... + 91134.

It is an arithmetic number, because the mean of its divisors is an integer number (1779456).

Almost surely, 2^60021444 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 60021444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85413888).

60021444 is an abundant number, since it is smaller than the sum of its proper divisors (110806332).

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

60021444 is a wasteful number, since it uses less digits than its factorization.

60021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 60021444 is about 7747.3507730062. The cubic root of 60021444 is about 391.5333976849.

The spelling of 60021444 in words is "sixty million, twenty-one thousand, four hundred forty-four".