20774252 has 6 divisors (see below), whose sum is σ = 36354948. Its totient is φ = 10387124.

The previous prime is 20774233. The next prime is 20774263. The reversal of 20774252 is 25247702.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2596778 + ... + 2596785.

It is an arithmetic number, because the mean of its divisors is an integer number (6059158).

Almost surely, 2^20774252 is an apocalyptic number.

It is an amenable number.

20774252 is a deficient number, since it is larger than the sum of its proper divisors (15580696).

20774252 is a wasteful number, since it uses less digits than its factorization.

20774252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193567 (or 5193565 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 20774252 is about 4557.8780150416. The cubic root of 20774252 is about 274.9002481185.

The spelling of 20774252 in words is "twenty million, seven hundred seventy-four thousand, two hundred fifty-two".