20771350 has 12 divisors (see below), whose sum is σ = 38634804. Its totient is φ = 8308520.

The previous prime is 20771341. The next prime is 20771371. The reversal of 20771350 is 5317702.

It is a super-3 number, since 3×20771350³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 207664 + ... + 207763.

It is an arithmetic number, because the mean of its divisors is an integer number (3219567).

Almost surely, 2^20771350 is an apocalyptic number.

20771350 is a deficient number, since it is larger than the sum of its proper divisors (17863454).

20771350 is a wasteful number, since it uses less digits than its factorization.

20771350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415439 (or 415434 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 20771350 is about 4557.5596540254. The cubic root of 20771350 is about 274.8874470532.

The spelling of 20771350 in words is "twenty million, seven hundred seventy-one thousand, three hundred fifty".