60721400 has 48 divisors (see below), whose sum is σ = 143145600. Its totient is φ = 23950080.

The previous prime is 60721391. The next prime is 60721417. The reversal of 60721400 is 412706.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12521 + ... + 16679.

It is an arithmetic number, because the mean of its divisors is an integer number (2982200).

Almost surely, 2^60721400 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 60721400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71572800).

60721400 is an abundant number, since it is smaller than the sum of its proper divisors (82424200).

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

60721400 is a wasteful number, since it uses less digits than its factorization.

60721400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248 (or 4239 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 60721400 is about 7792.3937272189. The cubic root of 60721400 is about 393.0495095682.

The spelling of 60721400 in words is "sixty million, seven hundred twenty-one thousand, four hundred".