20355354 has 32 divisors (see below), whose sum is σ = 46008000. Its totient is φ = 6669072.

The previous prime is 20355331. The next prime is 20355373. The reversal of 20355354 is 45355302.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9 + ... + 6380.

It is an arithmetic number, because the mean of its divisors is an integer number (1437750).

Almost surely, 2^20355354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20355354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23004000).

20355354 is an abundant number, since it is smaller than the sum of its proper divisors (25652646).

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

20355354 is a wasteful number, since it uses less digits than its factorization.

20355354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6459 (or 6453 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 20355354 is about 4511.6908138746. The cubic root of 20355354 is about 273.0399651671.

The spelling of 20355354 in words is "twenty million, three hundred fifty-five thousand, three hundred fifty-four".