20574150 has 48 divisors (see below), whose sum is σ = 53716800. Its totient is φ = 5196960.

The previous prime is 20574149. The next prime is 20574161. The reversal of 20574150 is 5147502.

It is a self number, because there is not a number n which added to its sum of digits gives 20574150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 760 + ... + 6459.

It is an arithmetic number, because the mean of its divisors is an integer number (1119100).

Almost surely, 2^20574150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20574150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26858400).

20574150 is an abundant number, since it is smaller than the sum of its proper divisors (33142650).

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

20574150 is a wasteful number, since it uses less digits than its factorization.

20574150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7253 (or 7248 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 20574150 is about 4535.8736754897. The cubic root of 20574150 is about 274.0147664623.

The spelling of 20574150 in words is "twenty million, five hundred seventy-four thousand, one hundred fifty".