20774358 has 48 divisors (see below), whose sum is σ = 49420800. Its totient is φ = 6254640.

The previous prime is 20774321. The next prime is 20774363. The reversal of 20774358 is 85347702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47103 + ... + 47541.

It is an arithmetic number, because the mean of its divisors is an integer number (1029600).

Almost surely, 2^20774358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20774358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24710400).

20774358 is an abundant number, since it is smaller than the sum of its proper divisors (28646442).

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

20774358 is a wasteful number, since it uses less digits than its factorization.

20774358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 20774358 is about 4557.8896432450. The cubic root of 20774358 is about 274.9007156745.

The spelling of 20774358 in words is "twenty million, seven hundred seventy-four thousand, three hundred fifty-eight".