201417390 has 48 divisors (see below), whose sum is σ = 527188896. Its totient is φ = 53352000.

The previous prime is 201417361. The next prime is 201417401. The reversal of 201417390 is 93714102.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6180 + ... + 21000.

It is an arithmetic number, because the mean of its divisors is an integer number (10983102).

Almost surely, 2^201417390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201417390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263594448).

201417390 is an abundant number, since it is smaller than the sum of its proper divisors (325771506).

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

201417390 is a wasteful number, since it uses less digits than its factorization.

201417390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14985 (or 14982 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 201417390 is about 14192.1594551358. The cubic root of 201417390 is about 586.1817880790.

The spelling of 201417390 in words is "two hundred one million, four hundred seventeen thousand, three hundred ninety".