20601450 has 72 divisors (see below), whose sum is σ = 58626828. Its totient is φ = 5168640.

The previous prime is 20601439. The next prime is 20601473. The reversal of 20601450 is 5410602.

It is a happy number.

20601450 is a `hidden beast` number, since 20 + 601 + 45 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 9492561 + 11108889 = 3081^2 + 3333^2 .

It is a super-4 number, since 4×20601450⁴ (a number of 30 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6304 + ... + 8996.

Almost surely, 2^20601450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20601450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29313414).

20601450 is an abundant number, since it is smaller than the sum of its proper divisors (38025378).

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

20601450 is a wasteful number, since it uses less digits than its factorization.

20601450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 20601450 is about 4538.8820209386. The cubic root of 20601450 is about 274.1359103389.

The spelling of 20601450 in words is "twenty million, six hundred one thousand, four hundred fifty".